Question

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

Answer 1

Given,

A proportion = 32:112::_:217

• First term = 32
• Second term = 112
• Third term = x
• Fourth term = 217

Find x

• 1st term × 2nd term = 3rd term × 4th term

Substitute

32 × 112 = x × 217

3584 = 217x

3584 ÷ 217 = x

x = 16.516129032

Verification

32 × 112 = 16.516129032 × 217

3584 = 3584

Hence, verified $\bold\green\checkmark$