Ratio and Proportion Worksheet
The method (One part): Divide in a ratio a : b: one part = total ÷ (a + b); shares are a parts and b parts. If you know one share, one part = that share ÷ its number of parts. Proportion a : b = c : d means a × d = b × c (fourth proportional d = b × c ÷ a; third proportional to a and b is b × b ÷ a).
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- 1.Divide ₹279 between Diya and Pooja in the ratio 4 : 5. How much does Pooja get (in ₹)?
- 2.8 : 2 = 24 : ?
- 3.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
- 4.8 : 2 = 48 : ?
- 5.Divide ₹72 between Nisha and Aarav in the ratio 7 : 1. How much does Nisha get (in ₹)?
- 6.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
- 7.Divide ₹210 between Sneha and Karan in the ratio 9 : 1. How much does Sneha get (in ₹)?
- 8.Divide ₹748 between Ishaan and Aditya in the ratio 8 : 9. How much does Ishaan get (in ₹)?
- 9.Divide ₹192 between Meera and Rahul in the ratio 5 : 3. How much does Rahul get (in ₹)?
- 10.The ratio of boys to girls in a class is 2 : 3. There are 4 boys. How many girls are there?
- 11.8 : 5 = 56 : ?
- 12.Divide ₹342 between Vivaan and Dev in the ratio 1 : 8. How much does Vivaan get (in ₹)?
- 13.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
- 14.Divide ₹406 between Meera and Isha in the ratio 4 : 3. How much does Isha get (in ₹)?
- 15.Divide ₹884 between Vivaan and Rahul in the ratio 8 : 9. How much does Vivaan get (in ₹)?
- 16.9 : 6 = 72 : ?
- 17.The ratio of boys to girls in a class is 6 : 1. There are 54 boys. How many girls are there?
- 18.The ratio of boys to girls in a class is 2 : 9. There are 14 boys. How many girls are there?
- 19.Divide ₹88 between Nisha and Zoya in the ratio 5 : 6. How much does Zoya get (in ₹)?
- 20.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
- 21.4 : 7 = 8 : ?
- 22.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
- 23.4 : 2 = 16 : ?
- 24.Divide ₹470 between Priya and Aditya in the ratio 1 : 9. How much does Aditya get (in ₹)?
- 25.2 : 4 = 6 : ?
- 26.7 : 9 = 28 : ?
- 27.Divide ₹441 between Arjun and Manav in the ratio 2 : 7. How much does Manav get (in ₹)?
- 28.11 : 5 = 55 : ?
- 29.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
- 30.Divide ₹264 between Kavya and Priya in the ratio 1 : 7. How much does Priya get (in ₹)?
- 31.12 : 4 = 96 : ?
- 32.The ratio of boys to girls in a class is 8 : 3. There are 24 boys. How many girls are there?
- 33.3 : 6 = 9 : ?
- 34.Divide ₹120 between Isha and Tara in the ratio 7 : 1. How much does Tara get (in ₹)?
- 35.11 : 14 = 77 : ?
- 36.7 : 11 = 63 : ?
- 37.The ratio of boys to girls in a class is 8 : 5. There are 56 boys. How many girls are there?
- 38.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
- 39.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
- 40.3 : 14 = 12 : ?
Answer key
- 155
- 6
- 81
- 12
- 63
- 112
- 189
- 352
- 72
- 6
- 35
- 38
- 64
- 174
- 416
- 48
- 9
- 63
- 48
- 45
- 14
- 128
- 8
- 423
- 12
- 36
- 343
- 25
- 27
- 231
- 32
- 9
- 18
- 15
- 98
- 99
- 35
- 125
- 200
- 56
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