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Finding the Fourth Proportional to 404,569.10, 606,853.96 and 138,331.62

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Solution

The fourth proportional to 404,569.10, 606,853.96 and 138,331.62 is: 207,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,569.10 : 606,853.96 = 138,331.62 : x
  2. Step 2: Convert to fraction form
    404,569.10/606,853.96 = 138,331.62/x
  3. Step 3: Cross multiply
    404,569.10x = 606,853.96 × 138,331.62
  4. Step 4: Simplify right side
    404,569.10x = 83,947,091,044.39
  5. Step 5: Solve for x
    x = 83,947,091,044.39/404,569.10
  6. Step 6: Final answer
    x = 207,497.53

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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.