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Finding the Fourth Proportional to 363.71, 501.96 and 239.45

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Solution

The fourth proportional to 363.71, 501.96 and 239.45 is: 330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.71 : 501.96 = 239.45 : x
  2. Step 2: Convert to fraction form
    363.71/501.96 = 239.45/x
  3. Step 3: Cross multiply
    363.71x = 501.96 × 239.45
  4. Step 4: Simplify right side
    363.71x = 120,191.81
  5. Step 5: Solve for x
    x = 120,191.81/363.71
  6. Step 6: Final answer
    x = 330.47

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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.