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Finding the Third Proportional to 76,656 and 164,970

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Solution

The third proportional to 76,656 and 164,970 is: 355,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,656 : 164,970 = 164,970 : x
  2. Step 2: Convert to fraction form
    76,656/164,970 = 164,970/x
  3. Step 3: Cross multiply
    76,656x = 164,970 × 164,970
  4. Step 4: Simplify right side
    76,656x = 27,215,100,900
  5. Step 5: Solve for x
    x = 27,215,100,900/76,656
  6. Step 6: Final answer
    x = 355,028.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.