Question
Class 6MathematicsRatio & Proportion

The first, second and fourth terms in a proportion are 32, 112, 217 respectively. Find the third term.

Verified Answer

Let the third term be x.

32, 112, x, 217 are in proportion.
∴ 32 : 112 :: x : 217

⇒ 32/112 = x/217
⇒ 112 × x = 32 × 217
⇒ x = (32 × 217)/112
= 62

Hence, the third term = 62.