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Finding the Third Proportional to 67,451 and 144,742

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Solution

The third proportional to 67,451 and 144,742 is: 310,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,451 : 144,742 = 144,742 : x
  2. Step 2: Convert to fraction form
    67,451/144,742 = 144,742/x
  3. Step 3: Cross multiply
    67,451x = 144,742 × 144,742
  4. Step 4: Simplify right side
    67,451x = 20,950,246,564
  5. Step 5: Solve for x
    x = 20,950,246,564/67,451
  6. Step 6: Final answer
    x = 310,599.50

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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.