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Finding the Fourth Proportional to 733.49, 1,100.10 and 213.38

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Solution

The fourth proportional to 733.49, 1,100.10 and 213.38 is: 320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.49 : 1,100.10 = 213.38 : x
  2. Step 2: Convert to fraction form
    733.49/1,100.10 = 213.38/x
  3. Step 3: Cross multiply
    733.49x = 1,100.10 × 213.38
  4. Step 4: Simplify right side
    733.49x = 234,739.34
  5. Step 5: Solve for x
    x = 234,739.34/733.49
  6. Step 6: Final answer
    x = 320.03

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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.