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Finding the Fourth Proportional to 625.13, 862.80 and 363.19

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Solution

The fourth proportional to 625.13, 862.80 and 363.19 is: 501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.13 : 862.80 = 363.19 : x
  2. Step 2: Convert to fraction form
    625.13/862.80 = 363.19/x
  3. Step 3: Cross multiply
    625.13x = 862.80 × 363.19
  4. Step 4: Simplify right side
    625.13x = 313,360.33
  5. Step 5: Solve for x
    x = 313,360.33/625.13
  6. Step 6: Final answer
    x = 501.27

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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.