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Finding the Third Proportional to 201,891 and 313,497.50

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Solution

The third proportional to 201,891 and 313,497.50 is: 486,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,891 : 313,497.50 = 313,497.50 : x
  2. Step 2: Convert to fraction form
    201,891/313,497.50 = 313,497.50/x
  3. Step 3: Cross multiply
    201,891x = 313,497.50 × 313,497.50
  4. Step 4: Simplify right side
    201,891x = 98,280,682,506.25
  5. Step 5: Solve for x
    x = 98,280,682,506.25/201,891
  6. Step 6: Final answer
    x = 486,800.71

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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.