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Finding the Third Proportional to 104,609 and 214,780

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Solution

The third proportional to 104,609 and 214,780 is: 440,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,609 : 214,780 = 214,780 : x
  2. Step 2: Convert to fraction form
    104,609/214,780 = 214,780/x
  3. Step 3: Cross multiply
    104,609x = 214,780 × 214,780
  4. Step 4: Simplify right side
    104,609x = 46,130,448,400
  5. Step 5: Solve for x
    x = 46,130,448,400/104,609
  6. Step 6: Final answer
    x = 440,979.73

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.