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Finding the Third Proportional to 208,554 and 458,580

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Solution

The third proportional to 208,554 and 458,580 is: 1,008,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,554 : 458,580 = 458,580 : x
  2. Step 2: Convert to fraction form
    208,554/458,580 = 458,580/x
  3. Step 3: Cross multiply
    208,554x = 458,580 × 458,580
  4. Step 4: Simplify right side
    208,554x = 210,295,616,400
  5. Step 5: Solve for x
    x = 210,295,616,400/208,554
  6. Step 6: Final answer
    x = 1,008,350.91

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.