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Finding the Fourth Proportional to 252,308.25, 378,535.43 and 74,819.54

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Solution

The fourth proportional to 252,308.25, 378,535.43 and 74,819.54 is: 112,250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,308.25 : 378,535.43 = 74,819.54 : x
  2. Step 2: Convert to fraction form
    252,308.25/378,535.43 = 74,819.54/x
  3. Step 3: Cross multiply
    252,308.25x = 378,535.43 × 74,819.54
  4. Step 4: Simplify right side
    252,308.25x = 28,321,847,879.69
  5. Step 5: Solve for x
    x = 28,321,847,879.69/252,308.25
  6. Step 6: Final answer
    x = 112,250.98

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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.