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Finding the Third Proportional to 68,834 and 143,908

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Solution

The third proportional to 68,834 and 143,908 is: 300,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,834 : 143,908 = 143,908 : x
  2. Step 2: Convert to fraction form
    68,834/143,908 = 143,908/x
  3. Step 3: Cross multiply
    68,834x = 143,908 × 143,908
  4. Step 4: Simplify right side
    68,834x = 20,709,512,464
  5. Step 5: Solve for x
    x = 20,709,512,464/68,834
  6. Step 6: Final answer
    x = 300,861.67

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.