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Finding the Fourth Proportional to 658.34, 908.42 and 363.62

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Solution

The fourth proportional to 658.34, 908.42 and 363.62 is: 501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.34 : 908.42 = 363.62 : x
  2. Step 2: Convert to fraction form
    658.34/908.42 = 363.62/x
  3. Step 3: Cross multiply
    658.34x = 908.42 × 363.62
  4. Step 4: Simplify right side
    658.34x = 330,319.68
  5. Step 5: Solve for x
    x = 330,319.68/658.34
  6. Step 6: Final answer
    x = 501.75

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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.