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Finding the Third Proportional to 115,989 and 247,161

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Solution

The third proportional to 115,989 and 247,161 is: 526,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,989 : 247,161 = 247,161 : x
  2. Step 2: Convert to fraction form
    115,989/247,161 = 247,161/x
  3. Step 3: Cross multiply
    115,989x = 247,161 × 247,161
  4. Step 4: Simplify right side
    115,989x = 61,088,559,921
  5. Step 5: Solve for x
    x = 61,088,559,921/115,989
  6. Step 6: Final answer
    x = 526,675.46

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.