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Finding the Third Proportional to 118,829 and 258,151

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Solution

The third proportional to 118,829 and 258,151 is: 560,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829 : 258,151 = 258,151 : x
  2. Step 2: Convert to fraction form
    118,829/258,151 = 258,151/x
  3. Step 3: Cross multiply
    118,829x = 258,151 × 258,151
  4. Step 4: Simplify right side
    118,829x = 66,641,938,801
  5. Step 5: Solve for x
    x = 66,641,938,801/118,829
  6. Step 6: Final answer
    x = 560,822.18

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.