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Finding the Fourth Proportional to 625.91, 863.87 and 363.96

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Solution

The fourth proportional to 625.91, 863.87 and 363.96 is: 502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.91 : 863.87 = 363.96 : x
  2. Step 2: Convert to fraction form
    625.91/863.87 = 363.96/x
  3. Step 3: Cross multiply
    625.91x = 863.87 × 363.96
  4. Step 4: Simplify right side
    625.91x = 314,412.31
  5. Step 5: Solve for x
    x = 314,412.31/625.91
  6. Step 6: Final answer
    x = 502.33

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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.