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Finding the Fourth Proportional to 229.97, 345.57 and 223.29

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Solution

The fourth proportional to 229.97, 345.57 and 223.29 is: 335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.97 : 345.57 = 223.29 : x
  2. Step 2: Convert to fraction form
    229.97/345.57 = 223.29/x
  3. Step 3: Cross multiply
    229.97x = 345.57 × 223.29
  4. Step 4: Simplify right side
    229.97x = 77,162.33
  5. Step 5: Solve for x
    x = 77,162.33/229.97
  6. Step 6: Final answer
    x = 335.53

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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.