Finding the Fourth Proportional to 458,207.37, 687,409.92 and 138,332.70
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Solution
The fourth proportional to 458,207.37, 687,409.92 and 138,332.70 is: 207,528.90
Step by Step Solution
- Step 1: Write the proportion equation
458,207.37 : 687,409.92 = 138,332.70 : x - Step 2: Convert to fraction form
458,207.37/687,409.92 = 138,332.70/x - Step 3: Cross multiply
458,207.37x = 687,409.92 × 138,332.70 - Step 4: Simplify right side
458,207.37x = 95,091,270,240.38 - Step 5: Solve for x
x = 95,091,270,240.38/458,207.37 - Step 6: Final answer
x = 207,528.90
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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.