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Finding the Third Proportional to 202,190 and 313,944

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Solution

The third proportional to 202,190 and 313,944 is: 487,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,190 : 313,944 = 313,944 : x
  2. Step 2: Convert to fraction form
    202,190/313,944 = 313,944/x
  3. Step 3: Cross multiply
    202,190x = 313,944 × 313,944
  4. Step 4: Simplify right side
    202,190x = 98,560,835,136
  5. Step 5: Solve for x
    x = 98,560,835,136/202,190
  6. Step 6: Final answer
    x = 487,466.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.