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Finding the Fourth Proportional to 733.46, 1,100.25 and 271.25

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Solution

The fourth proportional to 733.46, 1,100.25 and 271.25 is: 406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.46 : 1,100.25 = 271.25 : x
  2. Step 2: Convert to fraction form
    733.46/1,100.25 = 271.25/x
  3. Step 3: Cross multiply
    733.46x = 1,100.25 × 271.25
  4. Step 4: Simplify right side
    733.46x = 298,442.81
  5. Step 5: Solve for x
    x = 298,442.81/733.46
  6. Step 6: Final answer
    x = 406.90

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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.