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Finding the Fourth Proportional to 225,513.76, 338,286.56 and 90,577.92

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Solution

The fourth proportional to 225,513.76, 338,286.56 and 90,577.92 is: 135,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,513.76 : 338,286.56 = 90,577.92 : x
  2. Step 2: Convert to fraction form
    225,513.76/338,286.56 = 90,577.92/x
  3. Step 3: Cross multiply
    225,513.76x = 338,286.56 × 90,577.92
  4. Step 4: Simplify right side
    225,513.76x = 30,641,292,968.76
  5. Step 5: Solve for x
    x = 30,641,292,968.76/225,513.76
  6. Step 6: Final answer
    x = 135,873.27

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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.