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Finding the Third Proportional to 140.59 and 200.13

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Solution

The third proportional to 140.59 and 200.13 is: 284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.59 : 200.13 = 200.13 : x
  2. Step 2: Convert to fraction form
    140.59/200.13 = 200.13/x
  3. Step 3: Cross multiply
    140.59x = 200.13 × 200.13
  4. Step 4: Simplify right side
    140.59x = 40,050.80
  5. Step 5: Solve for x
    x = 40,050.80/140.59
  6. Step 6: Final answer
    x = 284.88

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.