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Finding the Fourth Proportional to 206.68, 285.25 and 132.97

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Solution

The fourth proportional to 206.68, 285.25 and 132.97 is: 183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.68 : 285.25 = 132.97 : x
  2. Step 2: Convert to fraction form
    206.68/285.25 = 132.97/x
  3. Step 3: Cross multiply
    206.68x = 285.25 × 132.97
  4. Step 4: Simplify right side
    206.68x = 37,929.69
  5. Step 5: Solve for x
    x = 37,929.69/206.68
  6. Step 6: Final answer
    x = 183.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.