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Finding the Fourth Proportional to 225,568.97, 338,327.12 and 90,627.58

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Solution

The fourth proportional to 225,568.97, 338,327.12 and 90,627.58 is: 135,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,568.97 : 338,327.12 = 90,627.58 : x
  2. Step 2: Convert to fraction form
    225,568.97/338,327.12 = 90,627.58/x
  3. Step 3: Cross multiply
    225,568.97x = 338,327.12 × 90,627.58
  4. Step 4: Simplify right side
    225,568.97x = 30,661,766,835.01
  5. Step 5: Solve for x
    x = 30,661,766,835.01/225,568.97
  6. Step 6: Final answer
    x = 135,930.78

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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.