Finding the Fourth Proportional to 170.25, 234.63 and 157.18
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Solution
The fourth proportional to 170.25, 234.63 and 157.18 is: 216.62
Step by Step Solution
- Step 1: Write the proportion equation
170.25 : 234.63 = 157.18 : x - Step 2: Convert to fraction form
170.25/234.63 = 157.18/x - Step 3: Cross multiply
170.25x = 234.63 × 157.18 - Step 4: Simplify right side
170.25x = 36,879.14 - Step 5: Solve for x
x = 36,879.14/170.25 - Step 6: Final answer
x = 216.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.