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Finding the Third Proportional to 171,489 and 376,917

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Solution

The third proportional to 171,489 and 376,917 is: 828,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,489 : 376,917 = 376,917 : x
  2. Step 2: Convert to fraction form
    171,489/376,917 = 376,917/x
  3. Step 3: Cross multiply
    171,489x = 376,917 × 376,917
  4. Step 4: Simplify right side
    171,489x = 142,066,424,889
  5. Step 5: Solve for x
    x = 142,066,424,889/171,489
  6. Step 6: Final answer
    x = 828,428.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.