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Finding the Fourth Proportional to 438,295.39, 657,472.28 and 153,951.37

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Solution

The fourth proportional to 438,295.39, 657,472.28 and 153,951.37 is: 230,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,295.39 : 657,472.28 = 153,951.37 : x
  2. Step 2: Convert to fraction form
    438,295.39/657,472.28 = 153,951.37/x
  3. Step 3: Cross multiply
    438,295.39x = 657,472.28 × 153,951.37
  4. Step 4: Simplify right side
    438,295.39x = 101,218,755,829.59
  5. Step 5: Solve for x
    x = 101,218,755,829.59/438,295.39
  6. Step 6: Final answer
    x = 230,937.31

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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.