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Finding the Third Proportional to 199,581.75 and 309,883.50

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Solution

The third proportional to 199,581.75 and 309,883.50 is: 481,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,581.75 : 309,883.50 = 309,883.50 : x
  2. Step 2: Convert to fraction form
    199,581.75/309,883.50 = 309,883.50/x
  3. Step 3: Cross multiply
    199,581.75x = 309,883.50 × 309,883.50
  4. Step 4: Simplify right side
    199,581.75x = 96,027,783,572.25
  5. Step 5: Solve for x
    x = 96,027,783,572.25/199,581.75
  6. Step 6: Final answer
    x = 481,145.11

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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.