Home / 207,538.20-311,108.04-132,446.34

Finding the Fourth Proportional to 207,538.20, 311,108.04 and 132,446.34

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Solution

The fourth proportional to 207,538.20, 311,108.04 and 132,446.34 is: 198,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,538.20 : 311,108.04 = 132,446.34 : x
  2. Step 2: Convert to fraction form
    207,538.20/311,108.04 = 132,446.34/x
  3. Step 3: Cross multiply
    207,538.20x = 311,108.04 × 132,446.34
  4. Step 4: Simplify right side
    207,538.20x = 41,205,121,242.57
  5. Step 5: Solve for x
    x = 41,205,121,242.57/207,538.20
  6. Step 6: Final answer
    x = 198,542.35

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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.