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Finding the Fourth Proportional to 206.01, 283.98 and 143.73

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Solution

The fourth proportional to 206.01, 283.98 and 143.73 is: 198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.01 : 283.98 = 143.73 : x
  2. Step 2: Convert to fraction form
    206.01/283.98 = 143.73/x
  3. Step 3: Cross multiply
    206.01x = 283.98 × 143.73
  4. Step 4: Simplify right side
    206.01x = 40,816.45
  5. Step 5: Solve for x
    x = 40,816.45/206.01
  6. Step 6: Final answer
    x = 198.13

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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.