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Finding the Third Proportional to 56,879 and 122,479

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Solution

The third proportional to 56,879 and 122,479 is: 263,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,879 : 122,479 = 122,479 : x
  2. Step 2: Convert to fraction form
    56,879/122,479 = 122,479/x
  3. Step 3: Cross multiply
    56,879x = 122,479 × 122,479
  4. Step 4: Simplify right side
    56,879x = 15,001,105,441
  5. Step 5: Solve for x
    x = 15,001,105,441/56,879
  6. Step 6: Final answer
    x = 263,737.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.