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Finding the Fourth Proportional to 225,419.52, 311,078.92 and 124,817.52

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Solution

The fourth proportional to 225,419.52, 311,078.92 and 124,817.52 is: 172,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,419.52 : 311,078.92 = 124,817.52 : x
  2. Step 2: Convert to fraction form
    225,419.52/311,078.92 = 124,817.52/x
  3. Step 3: Cross multiply
    225,419.52x = 311,078.92 × 124,817.52
  4. Step 4: Simplify right side
    225,419.52x = 38,828,099,318.68
  5. Step 5: Solve for x
    x = 38,828,099,318.68/225,419.52
  6. Step 6: Final answer
    x = 172,248.17

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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.