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Finding the Fourth Proportional to 224.11, 308.46 and 202.24

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Solution

The fourth proportional to 224.11, 308.46 and 202.24 is: 278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.11 : 308.46 = 202.24 : x
  2. Step 2: Convert to fraction form
    224.11/308.46 = 202.24/x
  3. Step 3: Cross multiply
    224.11x = 308.46 × 202.24
  4. Step 4: Simplify right side
    224.11x = 62,382.95
  5. Step 5: Solve for x
    x = 62,382.95/224.11
  6. Step 6: Final answer
    x = 278.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.