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Finding the Third Proportional to 38,901 and 79,230

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Solution

The third proportional to 38,901 and 79,230 is: 161,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,901 : 79,230 = 79,230 : x
  2. Step 2: Convert to fraction form
    38,901/79,230 = 79,230/x
  3. Step 3: Cross multiply
    38,901x = 79,230 × 79,230
  4. Step 4: Simplify right side
    38,901x = 6,277,392,900
  5. Step 5: Solve for x
    x = 6,277,392,900/38,901
  6. Step 6: Final answer
    x = 161,368.42

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.