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Finding the Third Proportional to 104,147 and 215,679

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Solution

The third proportional to 104,147 and 215,679 is: 446,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,147 : 215,679 = 215,679 : x
  2. Step 2: Convert to fraction form
    104,147/215,679 = 215,679/x
  3. Step 3: Cross multiply
    104,147x = 215,679 × 215,679
  4. Step 4: Simplify right side
    104,147x = 46,517,431,041
  5. Step 5: Solve for x
    x = 46,517,431,041/104,147
  6. Step 6: Final answer
    x = 446,651.67

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.