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Finding the Third Proportional to 159,930 and 239,015

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Solution

The third proportional to 159,930 and 239,015 is: 357,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,930 : 239,015 = 239,015 : x
  2. Step 2: Convert to fraction form
    159,930/239,015 = 239,015/x
  3. Step 3: Cross multiply
    159,930x = 239,015 × 239,015
  4. Step 4: Simplify right side
    159,930x = 57,128,170,225
  5. Step 5: Solve for x
    x = 57,128,170,225/159,930
  6. Step 6: Final answer
    x = 357,207.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.