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Finding the Third Proportional to 66,618 and 141,867

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Solution

The third proportional to 66,618 and 141,867 is: 302,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,618 : 141,867 = 141,867 : x
  2. Step 2: Convert to fraction form
    66,618/141,867 = 141,867/x
  3. Step 3: Cross multiply
    66,618x = 141,867 × 141,867
  4. Step 4: Simplify right side
    66,618x = 20,126,245,689
  5. Step 5: Solve for x
    x = 20,126,245,689/66,618
  6. Step 6: Final answer
    x = 302,114.23

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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.