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Finding the Third Proportional to 66,414.94 and 143,327.81

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Solution

The third proportional to 66,414.94 and 143,327.81 is: 309,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.94 : 143,327.81 = 143,327.81 : x
  2. Step 2: Convert to fraction form
    66,414.94/143,327.81 = 143,327.81/x
  3. Step 3: Cross multiply
    66,414.94x = 143,327.81 × 143,327.81
  4. Step 4: Simplify right side
    66,414.94x = 20,542,861,836.04
  5. Step 5: Solve for x
    x = 20,542,861,836.04/66,414.94
  6. Step 6: Final answer
    x = 309,310.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.