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Finding the Fourth Proportional to 633.41, 949.39 and 308.03

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Solution

The fourth proportional to 633.41, 949.39 and 308.03 is: 461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.41 : 949.39 = 308.03 : x
  2. Step 2: Convert to fraction form
    633.41/949.39 = 308.03/x
  3. Step 3: Cross multiply
    633.41x = 949.39 × 308.03
  4. Step 4: Simplify right side
    633.41x = 292,435.08
  5. Step 5: Solve for x
    x = 292,435.08/633.41
  6. Step 6: Final answer
    x = 461.69

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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.