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Finding the Third Proportional to 66,696 and 146,640

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Solution

The third proportional to 66,696 and 146,640 is: 322,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696 : 146,640 = 146,640 : x
  2. Step 2: Convert to fraction form
    66,696/146,640 = 146,640/x
  3. Step 3: Cross multiply
    66,696x = 146,640 × 146,640
  4. Step 4: Simplify right side
    66,696x = 21,503,289,600
  5. Step 5: Solve for x
    x = 21,503,289,600/66,696
  6. Step 6: Final answer
    x = 322,407.48

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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.