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Finding the Fourth Proportional to 252,542.05, 378,803.85 and 75,044.45

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Solution

The fourth proportional to 252,542.05, 378,803.85 and 75,044.45 is: 112,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,542.05 : 378,803.85 = 75,044.45 : x
  2. Step 2: Convert to fraction form
    252,542.05/378,803.85 = 75,044.45/x
  3. Step 3: Cross multiply
    252,542.05x = 378,803.85 × 75,044.45
  4. Step 4: Simplify right side
    252,542.05x = 28,427,126,581.13
  5. Step 5: Solve for x
    x = 28,427,126,581.13/252,542.05
  6. Step 6: Final answer
    x = 112,563.93

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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.