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Finding the Third Proportional to 140,805 and 305,676

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Solution

The third proportional to 140,805 and 305,676 is: 663,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,805 : 305,676 = 305,676 : x
  2. Step 2: Convert to fraction form
    140,805/305,676 = 305,676/x
  3. Step 3: Cross multiply
    140,805x = 305,676 × 305,676
  4. Step 4: Simplify right side
    140,805x = 93,437,816,976
  5. Step 5: Solve for x
    x = 93,437,816,976/140,805
  6. Step 6: Final answer
    x = 663,597.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.