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Finding the Third Proportional to 120,843 and 259,179

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Solution

The third proportional to 120,843 and 259,179 is: 555,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,843 : 259,179 = 259,179 : x
  2. Step 2: Convert to fraction form
    120,843/259,179 = 259,179/x
  3. Step 3: Cross multiply
    120,843x = 259,179 × 259,179
  4. Step 4: Simplify right side
    120,843x = 67,173,754,041
  5. Step 5: Solve for x
    x = 67,173,754,041/120,843
  6. Step 6: Final answer
    x = 555,876.25

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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.