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Finding the Fourth Proportional to 633.39, 949.91 and 216.92

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Solution

The fourth proportional to 633.39, 949.91 and 216.92 is: 325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.39 : 949.91 = 216.92 : x
  2. Step 2: Convert to fraction form
    633.39/949.91 = 216.92/x
  3. Step 3: Cross multiply
    633.39x = 949.91 × 216.92
  4. Step 4: Simplify right side
    633.39x = 206,049.73
  5. Step 5: Solve for x
    x = 206,049.73/633.39
  6. Step 6: Final answer
    x = 325.31

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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.