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Finding the Fourth Proportional to 363.72, 501.90 and 239.62

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Solution

The fourth proportional to 363.72, 501.90 and 239.62 is: 330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.72 : 501.90 = 239.62 : x
  2. Step 2: Convert to fraction form
    363.72/501.90 = 239.62/x
  3. Step 3: Cross multiply
    363.72x = 501.90 × 239.62
  4. Step 4: Simplify right side
    363.72x = 120,265.28
  5. Step 5: Solve for x
    x = 120,265.28/363.72
  6. Step 6: Final answer
    x = 330.66

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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.