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Finding the Fourth Proportional to 733.38, 1,099.88 and 213.27

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Solution

The fourth proportional to 733.38, 1,099.88 and 213.27 is: 319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.38 : 1,099.88 = 213.27 : x
  2. Step 2: Convert to fraction form
    733.38/1,099.88 = 213.27/x
  3. Step 3: Cross multiply
    733.38x = 1,099.88 × 213.27
  4. Step 4: Simplify right side
    733.38x = 234,570.34
  5. Step 5: Solve for x
    x = 234,570.34/733.38
  6. Step 6: Final answer
    x = 319.85

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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.