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Finding the Fourth Proportional to 337,639.40, 506,272.14 and 138,099.92

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Solution

The fourth proportional to 337,639.40, 506,272.14 and 138,099.92 is: 207,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,639.40 : 506,272.14 = 138,099.92 : x
  2. Step 2: Convert to fraction form
    337,639.40/506,272.14 = 138,099.92/x
  3. Step 3: Cross multiply
    337,639.40x = 506,272.14 × 138,099.92
  4. Step 4: Simplify right side
    337,639.40x = 69,916,139,500.87
  5. Step 5: Solve for x
    x = 69,916,139,500.87/337,639.40
  6. Step 6: Final answer
    x = 207,073.40

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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.