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Finding the Third Proportional to 128,616 and 204,662

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Solution

The third proportional to 128,616 and 204,662 is: 325,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,616 : 204,662 = 204,662 : x
  2. Step 2: Convert to fraction form
    128,616/204,662 = 204,662/x
  3. Step 3: Cross multiply
    128,616x = 204,662 × 204,662
  4. Step 4: Simplify right side
    128,616x = 41,886,534,244
  5. Step 5: Solve for x
    x = 41,886,534,244/128,616
  6. Step 6: Final answer
    x = 325,671.26

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.