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Finding the Fourth Proportional to 225,549.32, 338,329.47 and 75,791.78

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Solution

The fourth proportional to 225,549.32, 338,329.47 and 75,791.78 is: 113,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,549.32 : 338,329.47 = 75,791.78 : x
  2. Step 2: Convert to fraction form
    225,549.32/338,329.47 = 75,791.78/x
  3. Step 3: Cross multiply
    225,549.32x = 338,329.47 × 75,791.78
  4. Step 4: Simplify right side
    225,549.32x = 25,642,592,757.76
  5. Step 5: Solve for x
    x = 25,642,592,757.76/225,549.32
  6. Step 6: Final answer
    x = 113,689.51

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1.5x scale

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.