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Finding the Third Proportional to 263,616 and 408,533

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Solution

The third proportional to 263,616 and 408,533 is: 633,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,616 : 408,533 = 408,533 : x
  2. Step 2: Convert to fraction form
    263,616/408,533 = 408,533/x
  3. Step 3: Cross multiply
    263,616x = 408,533 × 408,533
  4. Step 4: Simplify right side
    263,616x = 166,899,212,089
  5. Step 5: Solve for x
    x = 166,899,212,089/263,616
  6. Step 6: Final answer
    x = 633,114.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.