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Finding the Fourth Proportional to 363.18, 500.61 and 231.96

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Solution

The fourth proportional to 363.18, 500.61 and 231.96 is: 319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.18 : 500.61 = 231.96 : x
  2. Step 2: Convert to fraction form
    363.18/500.61 = 231.96/x
  3. Step 3: Cross multiply
    363.18x = 500.61 × 231.96
  4. Step 4: Simplify right side
    363.18x = 116,121.50
  5. Step 5: Solve for x
    x = 116,121.50/363.18
  6. Step 6: Final answer
    x = 319.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.