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Finding the Third Proportional to 197,760 and 409,539

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Solution

The third proportional to 197,760 and 409,539 is: 848,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,760 : 409,539 = 409,539 : x
  2. Step 2: Convert to fraction form
    197,760/409,539 = 409,539/x
  3. Step 3: Cross multiply
    197,760x = 409,539 × 409,539
  4. Step 4: Simplify right side
    197,760x = 167,722,192,521
  5. Step 5: Solve for x
    x = 167,722,192,521/197,760
  6. Step 6: Final answer
    x = 848,109.79

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.