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Finding the Third Proportional to 74,800 and 159,976

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Solution

The third proportional to 74,800 and 159,976 is: 342,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,800 : 159,976 = 159,976 : x
  2. Step 2: Convert to fraction form
    74,800/159,976 = 159,976/x
  3. Step 3: Cross multiply
    74,800x = 159,976 × 159,976
  4. Step 4: Simplify right side
    74,800x = 25,592,320,576
  5. Step 5: Solve for x
    x = 25,592,320,576/74,800
  6. Step 6: Final answer
    x = 342,143.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.