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Finding the Fourth Proportional to 632.70, 949.30 and 324.66

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Solution

The fourth proportional to 632.70, 949.30 and 324.66 is: 487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.70 : 949.30 = 324.66 : x
  2. Step 2: Convert to fraction form
    632.70/949.30 = 324.66/x
  3. Step 3: Cross multiply
    632.70x = 949.30 × 324.66
  4. Step 4: Simplify right side
    632.70x = 308,198.93
  5. Step 5: Solve for x
    x = 308,198.93/632.70
  6. Step 6: Final answer
    x = 487.12

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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.