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Finding the Third Proportional to 221,108 and 519,736

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Solution

The third proportional to 221,108 and 519,736 is: 1,221,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,108 : 519,736 = 519,736 : x
  2. Step 2: Convert to fraction form
    221,108/519,736 = 519,736/x
  3. Step 3: Cross multiply
    221,108x = 519,736 × 519,736
  4. Step 4: Simplify right side
    221,108x = 270,125,509,696
  5. Step 5: Solve for x
    x = 270,125,509,696/221,108
  6. Step 6: Final answer
    x = 1,221,690.35

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.