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Finding the Third Proportional to 199,726 and 434,717

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Solution

The third proportional to 199,726 and 434,717 is: 946,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,726 : 434,717 = 434,717 : x
  2. Step 2: Convert to fraction form
    199,726/434,717 = 434,717/x
  3. Step 3: Cross multiply
    199,726x = 434,717 × 434,717
  4. Step 4: Simplify right side
    199,726x = 188,978,870,089
  5. Step 5: Solve for x
    x = 188,978,870,089/199,726
  6. Step 6: Final answer
    x = 946,190.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.