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Finding the Fourth Proportional to 378,339.02, 567,385.05 and 125,551.60

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Solution

The fourth proportional to 378,339.02, 567,385.05 and 125,551.60 is: 188,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,339.02 : 567,385.05 = 125,551.60 : x
  2. Step 2: Convert to fraction form
    378,339.02/567,385.05 = 125,551.60/x
  3. Step 3: Cross multiply
    378,339.02x = 567,385.05 × 125,551.60
  4. Step 4: Simplify right side
    378,339.02x = 71,236,103,087.48
  5. Step 5: Solve for x
    x = 71,236,103,087.48/378,339.02
  6. Step 6: Final answer
    x = 188,286.43

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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.