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Finding the Fourth Proportional to 225,404.62, 338,139.90 and 67,645.54

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Solution

The fourth proportional to 225,404.62, 338,139.90 and 67,645.54 is: 101,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,404.62 : 338,139.90 = 67,645.54 : x
  2. Step 2: Convert to fraction form
    225,404.62/338,139.90 = 67,645.54/x
  3. Step 3: Cross multiply
    225,404.62x = 338,139.90 × 67,645.54
  4. Step 4: Simplify right side
    225,404.62x = 22,873,656,131.05
  5. Step 5: Solve for x
    x = 22,873,656,131.05/225,404.62
  6. Step 6: Final answer
    x = 101,478.20

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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.