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Finding the Third Proportional to 73,115 and 159,919

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Solution

The third proportional to 73,115 and 159,919 is: 349,778.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115 : 159,919 = 159,919 : x
  2. Step 2: Convert to fraction form
    73,115/159,919 = 159,919/x
  3. Step 3: Cross multiply
    73,115x = 159,919 × 159,919
  4. Step 4: Simplify right side
    73,115x = 25,574,086,561
  5. Step 5: Solve for x
    x = 25,574,086,561/73,115
  6. Step 6: Final answer
    x = 349,778.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.