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Finding the Third Proportional to 66,663 and 141,966

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Solution

The third proportional to 66,663 and 141,966 is: 302,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,663 : 141,966 = 141,966 : x
  2. Step 2: Convert to fraction form
    66,663/141,966 = 141,966/x
  3. Step 3: Cross multiply
    66,663x = 141,966 × 141,966
  4. Step 4: Simplify right side
    66,663x = 20,154,345,156
  5. Step 5: Solve for x
    x = 20,154,345,156/66,663
  6. Step 6: Final answer
    x = 302,331.81

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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.