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Finding the Fourth Proportional to 225,569.38, 338,327.73 and 90,628.01

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Solution

The fourth proportional to 225,569.38, 338,327.73 and 90,628.01 is: 135,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,569.38 : 338,327.73 = 90,628.01 : x
  2. Step 2: Convert to fraction form
    225,569.38/338,327.73 = 90,628.01/x
  3. Step 3: Cross multiply
    225,569.38x = 338,327.73 × 90,628.01
  4. Step 4: Simplify right side
    225,569.38x = 30,661,967,402.42
  5. Step 5: Solve for x
    x = 30,661,967,402.42/225,569.38
  6. Step 6: Final answer
    x = 135,931.43

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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.