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Finding the Third Proportional to 139.94 and 204.84

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Solution

The third proportional to 139.94 and 204.84 is: 299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139.94 : 204.84 = 204.84 : x
  2. Step 2: Convert to fraction form
    139.94/204.84 = 204.84/x
  3. Step 3: Cross multiply
    139.94x = 204.84 × 204.84
  4. Step 4: Simplify right side
    139.94x = 41,960.96
  5. Step 5: Solve for x
    x = 41,960.96/139.94
  6. Step 6: Final answer
    x = 299.86

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.