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Finding the Third Proportional to 204,884.50 and 311,017.50

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Solution

The third proportional to 204,884.50 and 311,017.50 is: 472,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,884.50 : 311,017.50 = 311,017.50 : x
  2. Step 2: Convert to fraction form
    204,884.50/311,017.50 = 311,017.50/x
  3. Step 3: Cross multiply
    204,884.50x = 311,017.50 × 311,017.50
  4. Step 4: Simplify right side
    204,884.50x = 96,731,885,306.25
  5. Step 5: Solve for x
    x = 96,731,885,306.25/204,884.50
  6. Step 6: Final answer
    x = 472,128.86

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.