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Finding the Third Proportional to 67,555 and 145,579

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Solution

The third proportional to 67,555 and 145,579 is: 313,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,555 : 145,579 = 145,579 : x
  2. Step 2: Convert to fraction form
    67,555/145,579 = 145,579/x
  3. Step 3: Cross multiply
    67,555x = 145,579 × 145,579
  4. Step 4: Simplify right side
    67,555x = 21,193,245,241
  5. Step 5: Solve for x
    x = 21,193,245,241/67,555
  6. Step 6: Final answer
    x = 313,718.38

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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.