Finding the Fourth Proportional to 437,236.10, 655,854.15 and 156,781.70
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Solution
The fourth proportional to 437,236.10, 655,854.15 and 156,781.70 is: 235,172.55
Step by Step Solution
- Step 1: Write the proportion equation
437,236.10 : 655,854.15 = 156,781.70 : x - Step 2: Convert to fraction form
437,236.10/655,854.15 = 156,781.70/x - Step 3: Cross multiply
437,236.10x = 655,854.15 × 156,781.70 - Step 4: Simplify right side
437,236.10x = 102,825,928,589.06 - Step 5: Solve for x
x = 102,825,928,589.06/437,236.10 - Step 6: Final answer
x = 235,172.55
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1.5x scale
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.