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Finding the Third Proportional to 68,988 and 150,891

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Solution

The third proportional to 68,988 and 150,891 is: 330,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,988 : 150,891 = 150,891 : x
  2. Step 2: Convert to fraction form
    68,988/150,891 = 150,891/x
  3. Step 3: Cross multiply
    68,988x = 150,891 × 150,891
  4. Step 4: Simplify right side
    68,988x = 22,768,093,881
  5. Step 5: Solve for x
    x = 22,768,093,881/68,988
  6. Step 6: Final answer
    x = 330,029.77

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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.