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Finding the Fourth Proportional to 378,027.90, 567,029.70 and 125,320.05

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Solution

The fourth proportional to 378,027.90, 567,029.70 and 125,320.05 is: 187,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,027.90 : 567,029.70 = 125,320.05 : x
  2. Step 2: Convert to fraction form
    378,027.90/567,029.70 = 125,320.05/x
  3. Step 3: Cross multiply
    378,027.90x = 567,029.70 × 125,320.05
  4. Step 4: Simplify right side
    378,027.90x = 71,060,190,355.49
  5. Step 5: Solve for x
    x = 71,060,190,355.49/378,027.90
  6. Step 6: Final answer
    x = 187,976.05

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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.