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Finding the Fourth Proportional to 337,639.72, 506,272.61 and 138,100.22

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Solution

The fourth proportional to 337,639.72, 506,272.61 and 138,100.22 is: 207,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,639.72 : 506,272.61 = 138,100.22 : x
  2. Step 2: Convert to fraction form
    337,639.72/506,272.61 = 138,100.22/x
  3. Step 3: Cross multiply
    337,639.72x = 506,272.61 × 138,100.22
  4. Step 4: Simplify right side
    337,639.72x = 69,916,358,820.97
  5. Step 5: Solve for x
    x = 69,916,358,820.97/337,639.72
  6. Step 6: Final answer
    x = 207,073.86

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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.