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Finding the Fourth Proportional to 416.97, 624.24 and 243.11

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Solution

The fourth proportional to 416.97, 624.24 and 243.11 is: 363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.97 : 624.24 = 243.11 : x
  2. Step 2: Convert to fraction form
    416.97/624.24 = 243.11/x
  3. Step 3: Cross multiply
    416.97x = 624.24 × 243.11
  4. Step 4: Simplify right side
    416.97x = 151,758.99
  5. Step 5: Solve for x
    x = 151,758.99/416.97
  6. Step 6: Final answer
    x = 363.96

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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.