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Finding the Third Proportional to 219,100 and 313,098

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Solution

The third proportional to 219,100 and 313,098 is: 447,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,100 : 313,098 = 313,098 : x
  2. Step 2: Convert to fraction form
    219,100/313,098 = 313,098/x
  3. Step 3: Cross multiply
    219,100x = 313,098 × 313,098
  4. Step 4: Simplify right side
    219,100x = 98,030,357,604
  5. Step 5: Solve for x
    x = 98,030,357,604/219,100
  6. Step 6: Final answer
    x = 447,422.90

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.