Home / 221,042.30-331,369.05-132,331.10

Finding the Fourth Proportional to 221,042.30, 331,369.05 and 132,331.10

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Solution

The fourth proportional to 221,042.30, 331,369.05 and 132,331.10 is: 198,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,042.30 : 331,369.05 = 132,331.10 : x
  2. Step 2: Convert to fraction form
    221,042.30/331,369.05 = 132,331.10/x
  3. Step 3: Cross multiply
    221,042.30x = 331,369.05 × 132,331.10
  4. Step 4: Simplify right side
    221,042.30x = 43,850,430,892.46
  5. Step 5: Solve for x
    x = 43,850,430,892.46/221,042.30
  6. Step 6: Final answer
    x = 198,380.27

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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.