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Finding the Third Proportional to 67,488 and 147,687

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Solution

The third proportional to 67,488 and 147,687 is: 323,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,488 : 147,687 = 147,687 : x
  2. Step 2: Convert to fraction form
    67,488/147,687 = 147,687/x
  3. Step 3: Cross multiply
    67,488x = 147,687 × 147,687
  4. Step 4: Simplify right side
    67,488x = 21,811,449,969
  5. Step 5: Solve for x
    x = 21,811,449,969/67,488
  6. Step 6: Final answer
    x = 323,190.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.