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Finding the Fourth Proportional to 633.19, 949.61 and 401.73

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Solution

The fourth proportional to 633.19, 949.61 and 401.73 is: 602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.19 : 949.61 = 401.73 : x
  2. Step 2: Convert to fraction form
    633.19/949.61 = 401.73/x
  3. Step 3: Cross multiply
    633.19x = 949.61 × 401.73
  4. Step 4: Simplify right side
    633.19x = 381,486.83
  5. Step 5: Solve for x
    x = 381,486.83/633.19
  6. Step 6: Final answer
    x = 602.48

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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.