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Finding the Fourth Proportional to 275,168.88, 412,753.32 and 220,114.80

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Solution

The fourth proportional to 275,168.88, 412,753.32 and 220,114.80 is: 330,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,168.88 : 412,753.32 = 220,114.80 : x
  2. Step 2: Convert to fraction form
    275,168.88/412,753.32 = 220,114.80/x
  3. Step 3: Cross multiply
    275,168.88x = 412,753.32 × 220,114.80
  4. Step 4: Simplify right side
    275,168.88x = 90,853,114,481.14
  5. Step 5: Solve for x
    x = 90,853,114,481.14/275,168.88
  6. Step 6: Final answer
    x = 330,172.20

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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.