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Finding the Fourth Proportional to 732.66, 1,100.07 and 300.66

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Solution

The fourth proportional to 732.66, 1,100.07 and 300.66 is: 451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.66 : 1,100.07 = 300.66 : x
  2. Step 2: Convert to fraction form
    732.66/1,100.07 = 300.66/x
  3. Step 3: Cross multiply
    732.66x = 1,100.07 × 300.66
  4. Step 4: Simplify right side
    732.66x = 330,747.05
  5. Step 5: Solve for x
    x = 330,747.05/732.66
  6. Step 6: Final answer
    x = 451.43

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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.