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Finding the Third Proportional to 121,182 and 259,212

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Solution

The third proportional to 121,182 and 259,212 is: 554,462.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,182 : 259,212 = 259,212 : x
  2. Step 2: Convert to fraction form
    121,182/259,212 = 259,212/x
  3. Step 3: Cross multiply
    121,182x = 259,212 × 259,212
  4. Step 4: Simplify right side
    121,182x = 67,190,860,944
  5. Step 5: Solve for x
    x = 67,190,860,944/121,182
  6. Step 6: Final answer
    x = 554,462.39

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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.