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Finding the Third Proportional to 173,878 and 419,747

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Solution

The third proportional to 173,878 and 419,747 is: 1,013,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,878 : 419,747 = 419,747 : x
  2. Step 2: Convert to fraction form
    173,878/419,747 = 419,747/x
  3. Step 3: Cross multiply
    173,878x = 419,747 × 419,747
  4. Step 4: Simplify right side
    173,878x = 176,187,544,009
  5. Step 5: Solve for x
    x = 176,187,544,009/173,878
  6. Step 6: Final answer
    x = 1,013,282.55

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.