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Finding the Third Proportional to 271,299.50 and 399,108.75

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Solution

The third proportional to 271,299.50 and 399,108.75 is: 587,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,299.50 : 399,108.75 = 399,108.75 : x
  2. Step 2: Convert to fraction form
    271,299.50/399,108.75 = 399,108.75/x
  3. Step 3: Cross multiply
    271,299.50x = 399,108.75 × 399,108.75
  4. Step 4: Simplify right side
    271,299.50x = 159,287,794,326.56
  5. Step 5: Solve for x
    x = 159,287,794,326.56/271,299.50
  6. Step 6: Final answer
    x = 587,128.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.