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Finding the Third Proportional to 56,279 and 122,926

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Solution

The third proportional to 56,279 and 122,926 is: 268,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,279 : 122,926 = 122,926 : x
  2. Step 2: Convert to fraction form
    56,279/122,926 = 122,926/x
  3. Step 3: Cross multiply
    56,279x = 122,926 × 122,926
  4. Step 4: Simplify right side
    56,279x = 15,110,801,476
  5. Step 5: Solve for x
    x = 15,110,801,476/56,279
  6. Step 6: Final answer
    x = 268,498.05

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.