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Finding the Third Proportional to 188,839 and 410,278

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Solution

The third proportional to 188,839 and 410,278 is: 891,383.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,839 : 410,278 = 410,278 : x
  2. Step 2: Convert to fraction form
    188,839/410,278 = 410,278/x
  3. Step 3: Cross multiply
    188,839x = 410,278 × 410,278
  4. Step 4: Simplify right side
    188,839x = 168,328,037,284
  5. Step 5: Solve for x
    x = 168,328,037,284/188,839
  6. Step 6: Final answer
    x = 891,383.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.