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Finding the Fourth Proportional to 732.84, 1,099.68 and 270.94

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Solution

The fourth proportional to 732.84, 1,099.68 and 270.94 is: 406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.84 : 1,099.68 = 270.94 : x
  2. Step 2: Convert to fraction form
    732.84/1,099.68 = 270.94/x
  3. Step 3: Cross multiply
    732.84x = 1,099.68 × 270.94
  4. Step 4: Simplify right side
    732.84x = 297,941.80
  5. Step 5: Solve for x
    x = 297,941.80/732.84
  6. Step 6: Final answer
    x = 406.56

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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.