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Finding the Fourth Proportional to 625.06, 863.31 and 477.37

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Solution

The fourth proportional to 625.06, 863.31 and 477.37 is: 659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.06 : 863.31 = 477.37 : x
  2. Step 2: Convert to fraction form
    625.06/863.31 = 477.37/x
  3. Step 3: Cross multiply
    625.06x = 863.31 × 477.37
  4. Step 4: Simplify right side
    625.06x = 412,118.29
  5. Step 5: Solve for x
    x = 412,118.29/625.06
  6. Step 6: Final answer
    x = 659.33

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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.