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Finding the Third Proportional to 150,450 and 330,420

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Solution

The third proportional to 150,450 and 330,420 is: 725,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,450 : 330,420 = 330,420 : x
  2. Step 2: Convert to fraction form
    150,450/330,420 = 330,420/x
  3. Step 3: Cross multiply
    150,450x = 330,420 × 330,420
  4. Step 4: Simplify right side
    150,450x = 109,177,376,400
  5. Step 5: Solve for x
    x = 109,177,376,400/150,450
  6. Step 6: Final answer
    x = 725,672.16

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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.