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Finding the Third Proportional to 230,878 and 345,396

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Solution

The third proportional to 230,878 and 345,396 is: 516,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,878 : 345,396 = 345,396 : x
  2. Step 2: Convert to fraction form
    230,878/345,396 = 345,396/x
  3. Step 3: Cross multiply
    230,878x = 345,396 × 345,396
  4. Step 4: Simplify right side
    230,878x = 119,298,396,816
  5. Step 5: Solve for x
    x = 119,298,396,816/230,878
  6. Step 6: Final answer
    x = 516,716.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.