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Finding the Fourth Proportional to 337,638.09, 506,270.17 and 138,098.60

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Solution

The fourth proportional to 337,638.09, 506,270.17 and 138,098.60 is: 207,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,638.09 : 506,270.17 = 138,098.60 : x
  2. Step 2: Convert to fraction form
    337,638.09/506,270.17 = 138,098.60/x
  3. Step 3: Cross multiply
    337,638.09x = 506,270.17 × 138,098.60
  4. Step 4: Simplify right side
    337,638.09x = 69,915,202,619.19
  5. Step 5: Solve for x
    x = 69,915,202,619.19/337,638.09
  6. Step 6: Final answer
    x = 207,071.43

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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.