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Finding the Third Proportional to 66,600 and 141,676

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Solution

The third proportional to 66,600 and 141,676 is: 301,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,600 : 141,676 = 141,676 : x
  2. Step 2: Convert to fraction form
    66,600/141,676 = 141,676/x
  3. Step 3: Cross multiply
    66,600x = 141,676 × 141,676
  4. Step 4: Simplify right side
    66,600x = 20,072,088,976
  5. Step 5: Solve for x
    x = 20,072,088,976/66,600
  6. Step 6: Final answer
    x = 301,382.72

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.