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Finding the Third Proportional to 86,930 and 209,348

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Solution

The third proportional to 86,930 and 209,348 is: 504,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930 : 209,348 = 209,348 : x
  2. Step 2: Convert to fraction form
    86,930/209,348 = 209,348/x
  3. Step 3: Cross multiply
    86,930x = 209,348 × 209,348
  4. Step 4: Simplify right side
    86,930x = 43,826,585,104
  5. Step 5: Solve for x
    x = 43,826,585,104/86,930
  6. Step 6: Final answer
    x = 504,159.50

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.