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Finding the Fourth Proportional to 378,553.89, 567,641.08 and 125,745.73

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Solution

The fourth proportional to 378,553.89, 567,641.08 and 125,745.73 is: 188,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,553.89 : 567,641.08 = 125,745.73 : x
  2. Step 2: Convert to fraction form
    378,553.89/567,641.08 = 125,745.73/x
  3. Step 3: Cross multiply
    378,553.89x = 567,641.08 × 125,745.73
  4. Step 4: Simplify right side
    378,553.89x = 71,378,443,913.65
  5. Step 5: Solve for x
    x = 71,378,443,913.65/378,553.89
  6. Step 6: Final answer
    x = 188,555.57

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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.