Finding the Fourth Proportional to 437.43, 656.19 and 163.53
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Solution
The fourth proportional to 437.43, 656.19 and 163.53 is: 245.31
Step by Step Solution
- Step 1: Write the proportion equation
437.43 : 656.19 = 163.53 : x - Step 2: Convert to fraction form
437.43/656.19 = 163.53/x - Step 3: Cross multiply
437.43x = 656.19 × 163.53 - Step 4: Simplify right side
437.43x = 107,306.75 - Step 5: Solve for x
x = 107,306.75/437.43 - Step 6: Final answer
x = 245.31
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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.