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Finding the Fourth Proportional to 354.20, 531 and 232.96

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Solution

The fourth proportional to 354.20, 531 and 232.96 is: 349.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.20 : 531 = 232.96 : x
  2. Step 2: Convert to fraction form
    354.20/531 = 232.96/x
  3. Step 3: Cross multiply
    354.20x = 531 × 232.96
  4. Step 4: Simplify right side
    354.20x = 123,701.76
  5. Step 5: Solve for x
    x = 123,701.76/354.20
  6. Step 6: Final answer
    x = 349.24

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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.