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Finding the Third Proportional to 69,562 and 149,920

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Solution

The third proportional to 69,562 and 149,920 is: 323,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,562 : 149,920 = 149,920 : x
  2. Step 2: Convert to fraction form
    69,562/149,920 = 149,920/x
  3. Step 3: Cross multiply
    69,562x = 149,920 × 149,920
  4. Step 4: Simplify right side
    69,562x = 22,476,006,400
  5. Step 5: Solve for x
    x = 22,476,006,400/69,562
  6. Step 6: Final answer
    x = 323,107.54

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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.