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Finding the Fourth Proportional to 625.23, 938.21 and 235.49

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Solution

The fourth proportional to 625.23, 938.21 and 235.49 is: 353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.23 : 938.21 = 235.49 : x
  2. Step 2: Convert to fraction form
    625.23/938.21 = 235.49/x
  3. Step 3: Cross multiply
    625.23x = 938.21 × 235.49
  4. Step 4: Simplify right side
    625.23x = 220,933.20
  5. Step 5: Solve for x
    x = 220,933.20/625.23
  6. Step 6: Final answer
    x = 353.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.