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Finding the Third Proportional to 378,418.50 and 569,223

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Solution

The third proportional to 378,418.50 and 569,223 is: 856,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,418.50 : 569,223 = 569,223 : x
  2. Step 2: Convert to fraction form
    378,418.50/569,223 = 569,223/x
  3. Step 3: Cross multiply
    378,418.50x = 569,223 × 569,223
  4. Step 4: Simplify right side
    378,418.50x = 324,014,823,729
  5. Step 5: Solve for x
    x = 324,014,823,729/378,418.50
  6. Step 6: Final answer
    x = 856,234.10

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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.