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Finding the Third Proportional to 100,946.50 and 218,614

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Solution

The third proportional to 100,946.50 and 218,614 is: 473,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,946.50 : 218,614 = 218,614 : x
  2. Step 2: Convert to fraction form
    100,946.50/218,614 = 218,614/x
  3. Step 3: Cross multiply
    100,946.50x = 218,614 × 218,614
  4. Step 4: Simplify right side
    100,946.50x = 47,792,080,996
  5. Step 5: Solve for x
    x = 47,792,080,996/100,946.50
  6. Step 6: Final answer
    x = 473,439.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.