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Finding the Fourth Proportional to 378,193.64, 567,357.89 and 125,489.30

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Solution

The fourth proportional to 378,193.64, 567,357.89 and 125,489.30 is: 188,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,193.64 : 567,357.89 = 125,489.30 : x
  2. Step 2: Convert to fraction form
    378,193.64/567,357.89 = 125,489.30/x
  3. Step 3: Cross multiply
    378,193.64x = 567,357.89 × 125,489.30
  4. Step 4: Simplify right side
    378,193.64x = 71,197,341,001.34
  5. Step 5: Solve for x
    x = 71,197,341,001.34/378,193.64
  6. Step 6: Final answer
    x = 188,256.32

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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.