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Finding the Fourth Proportional to 223.28, 335.28 and 185.12

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Solution

The fourth proportional to 223.28, 335.28 and 185.12 is: 277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.28 : 335.28 = 185.12 : x
  2. Step 2: Convert to fraction form
    223.28/335.28 = 185.12/x
  3. Step 3: Cross multiply
    223.28x = 335.28 × 185.12
  4. Step 4: Simplify right side
    223.28x = 62,067.03
  5. Step 5: Solve for x
    x = 62,067.03/223.28
  6. Step 6: Final answer
    x = 277.98

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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.