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Finding the Fourth Proportional to 633.45, 949.68 and 308.73

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Solution

The fourth proportional to 633.45, 949.68 and 308.73 is: 462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.45 : 949.68 = 308.73 : x
  2. Step 2: Convert to fraction form
    633.45/949.68 = 308.73/x
  3. Step 3: Cross multiply
    633.45x = 949.68 × 308.73
  4. Step 4: Simplify right side
    633.45x = 293,194.71
  5. Step 5: Solve for x
    x = 293,194.71/633.45
  6. Step 6: Final answer
    x = 462.85

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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.