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Finding the Fourth Proportional to 223.38, 333.36 and 217.44

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Solution

The fourth proportional to 223.38, 333.36 and 217.44 is: 324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.38 : 333.36 = 217.44 : x
  2. Step 2: Convert to fraction form
    223.38/333.36 = 217.44/x
  3. Step 3: Cross multiply
    223.38x = 333.36 × 217.44
  4. Step 4: Simplify right side
    223.38x = 72,485.80
  5. Step 5: Solve for x
    x = 72,485.80/223.38
  6. Step 6: Final answer
    x = 324.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.