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Finding the Fourth Proportional to 225,773.82, 311,581.92 and 125,171.82

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Solution

The fourth proportional to 225,773.82, 311,581.92 and 125,171.82 is: 172,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,773.82 : 311,581.92 = 125,171.82 : x
  2. Step 2: Convert to fraction form
    225,773.82/311,581.92 = 125,171.82/x
  3. Step 3: Cross multiply
    225,773.82x = 311,581.92 × 125,171.82
  4. Step 4: Simplify right side
    225,773.82x = 39,001,276,005.49
  5. Step 5: Solve for x
    x = 39,001,276,005.49/225,773.82
  6. Step 6: Final answer
    x = 172,744.90

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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.