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Finding the Third Proportional to 139.50 and 244

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Solution

The third proportional to 139.50 and 244 is: 426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139.50 : 244 = 244 : x
  2. Step 2: Convert to fraction form
    139.50/244 = 244/x
  3. Step 3: Cross multiply
    139.50x = 244 × 244
  4. Step 4: Simplify right side
    139.50x = 59,536
  5. Step 5: Solve for x
    x = 59,536/139.50
  6. Step 6: Final answer
    x = 426.78

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.