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Finding the Third Proportional to 100,424 and 222,880

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Solution

The third proportional to 100,424 and 222,880 is: 494,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,424 : 222,880 = 222,880 : x
  2. Step 2: Convert to fraction form
    100,424/222,880 = 222,880/x
  3. Step 3: Cross multiply
    100,424x = 222,880 × 222,880
  4. Step 4: Simplify right side
    100,424x = 49,675,494,400
  5. Step 5: Solve for x
    x = 49,675,494,400/100,424
  6. Step 6: Final answer
    x = 494,657.60

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.