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Finding the Third Proportional to 218,310.19 and 477,198.84

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Solution

The third proportional to 218,310.19 and 477,198.84 is: 1,043,097.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,310.19 : 477,198.84 = 477,198.84 : x
  2. Step 2: Convert to fraction form
    218,310.19/477,198.84 = 477,198.84/x
  3. Step 3: Cross multiply
    218,310.19x = 477,198.84 × 477,198.84
  4. Step 4: Simplify right side
    218,310.19x = 227,718,736,476.34
  5. Step 5: Solve for x
    x = 227,718,736,476.34/218,310.19
  6. Step 6: Final answer
    x = 1,043,097.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.