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Finding the Fourth Proportional to 633.25, 949.69 and 268.03

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Solution

The fourth proportional to 633.25, 949.69 and 268.03 is: 401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.25 : 949.69 = 268.03 : x
  2. Step 2: Convert to fraction form
    633.25/949.69 = 268.03/x
  3. Step 3: Cross multiply
    633.25x = 949.69 × 268.03
  4. Step 4: Simplify right side
    633.25x = 254,545.41
  5. Step 5: Solve for x
    x = 254,545.41/633.25
  6. Step 6: Final answer
    x = 401.97

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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.