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Finding the Third Proportional to 163,109 and 330,828

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Solution

The third proportional to 163,109 and 330,828 is: 671,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,109 : 330,828 = 330,828 : x
  2. Step 2: Convert to fraction form
    163,109/330,828 = 330,828/x
  3. Step 3: Cross multiply
    163,109x = 330,828 × 330,828
  4. Step 4: Simplify right side
    163,109x = 109,447,165,584
  5. Step 5: Solve for x
    x = 109,447,165,584/163,109
  6. Step 6: Final answer
    x = 671,006.29

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.