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Finding the Fourth Proportional to 625.42, 862.92 and 363.38

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Solution

The fourth proportional to 625.42, 862.92 and 363.38 is: 501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.42 : 862.92 = 363.38 : x
  2. Step 2: Convert to fraction form
    625.42/862.92 = 363.38/x
  3. Step 3: Cross multiply
    625.42x = 862.92 × 363.38
  4. Step 4: Simplify right side
    625.42x = 313,567.87
  5. Step 5: Solve for x
    x = 313,567.87/625.42
  6. Step 6: Final answer
    x = 501.37

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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.