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Finding the Third Proportional to 67,626 and 145,218

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Solution

The third proportional to 67,626 and 145,218 is: 311,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,626 : 145,218 = 145,218 : x
  2. Step 2: Convert to fraction form
    67,626/145,218 = 145,218/x
  3. Step 3: Cross multiply
    67,626x = 145,218 × 145,218
  4. Step 4: Simplify right side
    67,626x = 21,088,267,524
  5. Step 5: Solve for x
    x = 21,088,267,524/67,626
  6. Step 6: Final answer
    x = 311,836.68

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.