Finding the Fourth Proportional to 156,909.17, 235,361.70 and 38,581.53
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Solution
The fourth proportional to 156,909.17, 235,361.70 and 38,581.53 is: 57,871.79
Step by Step Solution
- Step 1: Write the proportion equation
156,909.17 : 235,361.70 = 38,581.53 : x - Step 2: Convert to fraction form
156,909.17/235,361.70 = 38,581.53/x - Step 3: Cross multiply
156,909.17x = 235,361.70 × 38,581.53 - Step 4: Simplify right side
156,909.17x = 9,080,614,930.70 - Step 5: Solve for x
x = 9,080,614,930.70/156,909.17 - Step 6: Final answer
x = 57,871.79
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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.