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Finding the Third Proportional to 84,642 and 180,945

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Solution

The third proportional to 84,642 and 180,945 is: 386,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,642 : 180,945 = 180,945 : x
  2. Step 2: Convert to fraction form
    84,642/180,945 = 180,945/x
  3. Step 3: Cross multiply
    84,642x = 180,945 × 180,945
  4. Step 4: Simplify right side
    84,642x = 32,741,093,025
  5. Step 5: Solve for x
    x = 32,741,093,025/84,642
  6. Step 6: Final answer
    x = 386,818.52

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.