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Finding the Fourth Proportional to 234,454.69, 323,510.92 and 138,945.97

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Solution

The fourth proportional to 234,454.69, 323,510.92 and 138,945.97 is: 191,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,454.69 : 323,510.92 = 138,945.97 : x
  2. Step 2: Convert to fraction form
    234,454.69/323,510.92 = 138,945.97/x
  3. Step 3: Cross multiply
    234,454.69x = 323,510.92 × 138,945.97
  4. Step 4: Simplify right side
    234,454.69x = 44,950,538,584.99
  5. Step 5: Solve for x
    x = 44,950,538,584.99/234,454.69
  6. Step 6: Final answer
    x = 191,723.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.