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Finding the Fourth Proportional to 625.44, 863.10 and 363.42

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Solution

The fourth proportional to 625.44, 863.10 and 363.42 is: 501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.44 : 863.10 = 363.42 : x
  2. Step 2: Convert to fraction form
    625.44/863.10 = 363.42/x
  3. Step 3: Cross multiply
    625.44x = 863.10 × 363.42
  4. Step 4: Simplify right side
    625.44x = 313,667.80
  5. Step 5: Solve for x
    x = 313,667.80/625.44
  6. Step 6: Final answer
    x = 501.52

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1.5x scale

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.