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Finding the Fourth Proportional to 224.84, 308.31 and 224.12

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Solution

The fourth proportional to 224.84, 308.31 and 224.12 is: 307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.84 : 308.31 = 224.12 : x
  2. Step 2: Convert to fraction form
    224.84/308.31 = 224.12/x
  3. Step 3: Cross multiply
    224.84x = 308.31 × 224.12
  4. Step 4: Simplify right side
    224.84x = 69,098.44
  5. Step 5: Solve for x
    x = 69,098.44/224.84
  6. Step 6: Final answer
    x = 307.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.