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Finding the Fourth Proportional to 206.29, 283.92 and 147.97

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Solution

The fourth proportional to 206.29, 283.92 and 147.97 is: 203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.29 : 283.92 = 147.97 : x
  2. Step 2: Convert to fraction form
    206.29/283.92 = 147.97/x
  3. Step 3: Cross multiply
    206.29x = 283.92 × 147.97
  4. Step 4: Simplify right side
    206.29x = 42,011.64
  5. Step 5: Solve for x
    x = 42,011.64/206.29
  6. Step 6: Final answer
    x = 203.65

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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.