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Finding the Third Proportional to 343,998 and 505,885

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Solution

The third proportional to 343,998 and 505,885 is: 743,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,998 : 505,885 = 505,885 : x
  2. Step 2: Convert to fraction form
    343,998/505,885 = 505,885/x
  3. Step 3: Cross multiply
    343,998x = 505,885 × 505,885
  4. Step 4: Simplify right side
    343,998x = 255,919,633,225
  5. Step 5: Solve for x
    x = 255,919,633,225/343,998
  6. Step 6: Final answer
    x = 743,956.75

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.