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Finding the Fourth Proportional to 252,229.52, 378,399.64 and 74,750.44

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Solution

The fourth proportional to 252,229.52, 378,399.64 and 74,750.44 is: 112,142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,229.52 : 378,399.64 = 74,750.44 : x
  2. Step 2: Convert to fraction form
    252,229.52/378,399.64 = 74,750.44/x
  3. Step 3: Cross multiply
    252,229.52x = 378,399.64 × 74,750.44
  4. Step 4: Simplify right side
    252,229.52x = 28,285,539,585.84
  5. Step 5: Solve for x
    x = 28,285,539,585.84/252,229.52
  6. Step 6: Final answer
    x = 112,142.07

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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.