Finding the Fourth Proportional to 490,697.68, 736,046.53 and 135,711.70
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Solution
The fourth proportional to 490,697.68, 736,046.53 and 135,711.70 is: 203,567.55
Step by Step Solution
- Step 1: Write the proportion equation
490,697.68 : 736,046.53 = 135,711.70 : x - Step 2: Convert to fraction form
490,697.68/736,046.53 = 135,711.70/x - Step 3: Cross multiply
490,697.68x = 736,046.53 × 135,711.70 - Step 4: Simplify right side
490,697.68x = 99,890,127,540.00 - Step 5: Solve for x
x = 99,890,127,540.00/490,697.68 - Step 6: Final answer
x = 203,567.55
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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.