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Finding the Fourth Proportional to 232.20, 349.11 and 205.56

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Solution

The fourth proportional to 232.20, 349.11 and 205.56 is: 309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.20 : 349.11 = 205.56 : x
  2. Step 2: Convert to fraction form
    232.20/349.11 = 205.56/x
  3. Step 3: Cross multiply
    232.20x = 349.11 × 205.56
  4. Step 4: Simplify right side
    232.20x = 71,763.05
  5. Step 5: Solve for x
    x = 71,763.05/232.20
  6. Step 6: Final answer
    x = 309.06

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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.