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Finding the Third Proportional to 197,876 and 276,796

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Solution

The third proportional to 197,876 and 276,796 is: 387,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,876 : 276,796 = 276,796 : x
  2. Step 2: Convert to fraction form
    197,876/276,796 = 276,796/x
  3. Step 3: Cross multiply
    197,876x = 276,796 × 276,796
  4. Step 4: Simplify right side
    197,876x = 76,616,025,616
  5. Step 5: Solve for x
    x = 76,616,025,616/197,876
  6. Step 6: Final answer
    x = 387,192.11

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.