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Finding the Third Proportional to 101,998 and 155,919

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Solution

The third proportional to 101,998 and 155,919 is: 238,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,998 : 155,919 = 155,919 : x
  2. Step 2: Convert to fraction form
    101,998/155,919 = 155,919/x
  3. Step 3: Cross multiply
    101,998x = 155,919 × 155,919
  4. Step 4: Simplify right side
    101,998x = 24,310,734,561
  5. Step 5: Solve for x
    x = 24,310,734,561/101,998
  6. Step 6: Final answer
    x = 238,345.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.