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Finding the Fourth Proportional to 224.72, 308.00 and 222.12

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Solution

The fourth proportional to 224.72, 308.00 and 222.12 is: 304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.72 : 308.00 = 222.12 : x
  2. Step 2: Convert to fraction form
    224.72/308.00 = 222.12/x
  3. Step 3: Cross multiply
    224.72x = 308.00 × 222.12
  4. Step 4: Simplify right side
    224.72x = 68,412.65
  5. Step 5: Solve for x
    x = 68,412.65/224.72
  6. Step 6: Final answer
    x = 304.43

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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.