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Finding the Third Proportional to 69,288 and 149,648

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Solution

The third proportional to 69,288 and 149,648 is: 323,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,288 : 149,648 = 149,648 : x
  2. Step 2: Convert to fraction form
    69,288/149,648 = 149,648/x
  3. Step 3: Cross multiply
    69,288x = 149,648 × 149,648
  4. Step 4: Simplify right side
    69,288x = 22,394,523,904
  5. Step 5: Solve for x
    x = 22,394,523,904/69,288
  6. Step 6: Final answer
    x = 323,209.27

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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.