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Finding the Fourth Proportional to 225,761.83, 311,565.33 and 125,159.83

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Solution

The fourth proportional to 225,761.83, 311,565.33 and 125,159.83 is: 172,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,761.83 : 311,565.33 = 125,159.83 : x
  2. Step 2: Convert to fraction form
    225,761.83/311,565.33 = 125,159.83/x
  3. Step 3: Cross multiply
    225,761.83x = 311,565.33 × 125,159.83
  4. Step 4: Simplify right side
    225,761.83x = 38,995,462,957.78
  5. Step 5: Solve for x
    x = 38,995,462,957.78/225,761.83
  6. Step 6: Final answer
    x = 172,728.33

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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.