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Finding the Fourth Proportional to 275,077.80, 412,618.22 and 125,213.28

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Solution

The fourth proportional to 275,077.80, 412,618.22 and 125,213.28 is: 187,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,077.80 : 412,618.22 = 125,213.28 : x
  2. Step 2: Convert to fraction form
    275,077.80/412,618.22 = 125,213.28/x
  3. Step 3: Cross multiply
    275,077.80x = 412,618.22 × 125,213.28
  4. Step 4: Simplify right side
    275,077.80x = 51,665,280,713.96
  5. Step 5: Solve for x
    x = 51,665,280,713.96/275,077.80
  6. Step 6: Final answer
    x = 187,820.61

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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.