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Finding the Fourth Proportional to 275,176.08, 412,765.56 and 125,311.86

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Solution

The fourth proportional to 275,176.08, 412,765.56 and 125,311.86 is: 187,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,176.08 : 412,765.56 = 125,311.86 : x
  2. Step 2: Convert to fraction form
    275,176.08/412,765.56 = 125,311.86/x
  3. Step 3: Cross multiply
    275,176.08x = 412,765.56 × 125,311.86
  4. Step 4: Simplify right side
    275,176.08x = 51,724,420,067.54
  5. Step 5: Solve for x
    x = 51,724,420,067.54/275,176.08
  6. Step 6: Final answer
    x = 187,968.45

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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.