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Finding the Third Proportional to 204,816 and 423,838

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Solution

The third proportional to 204,816 and 423,838 is: 877,073.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,816 : 423,838 = 423,838 : x
  2. Step 2: Convert to fraction form
    204,816/423,838 = 423,838/x
  3. Step 3: Cross multiply
    204,816x = 423,838 × 423,838
  4. Step 4: Simplify right side
    204,816x = 179,638,650,244
  5. Step 5: Solve for x
    x = 179,638,650,244/204,816
  6. Step 6: Final answer
    x = 877,073.33

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.