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Finding the Fourth Proportional to 206.33, 308.17 and 177.53

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Solution

The fourth proportional to 206.33, 308.17 and 177.53 is: 265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.33 : 308.17 = 177.53 : x
  2. Step 2: Convert to fraction form
    206.33/308.17 = 177.53/x
  3. Step 3: Cross multiply
    206.33x = 308.17 × 177.53
  4. Step 4: Simplify right side
    206.33x = 54,708.10
  5. Step 5: Solve for x
    x = 54,708.10/206.33
  6. Step 6: Final answer
    x = 265.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.