Finding the Fourth Proportional to 349.76, 524.36 and 157.12
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Solution
The fourth proportional to 349.76, 524.36 and 157.12 is: 235.55
Step by Step Solution
- Step 1: Write the proportion equation
349.76 : 524.36 = 157.12 : x - Step 2: Convert to fraction form
349.76/524.36 = 157.12/x - Step 3: Cross multiply
349.76x = 524.36 × 157.12 - Step 4: Simplify right side
349.76x = 82,387.44 - Step 5: Solve for x
x = 82,387.44/349.76 - Step 6: Final answer
x = 235.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.