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Finding the Third Proportional to 66,874 and 148,510

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Solution

The third proportional to 66,874 and 148,510 is: 329,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,874 : 148,510 = 148,510 : x
  2. Step 2: Convert to fraction form
    66,874/148,510 = 148,510/x
  3. Step 3: Cross multiply
    66,874x = 148,510 × 148,510
  4. Step 4: Simplify right side
    66,874x = 22,055,220,100
  5. Step 5: Solve for x
    x = 22,055,220,100/66,874
  6. Step 6: Final answer
    x = 329,802.62

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.