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Finding the Third Proportional to 213,450.75 and 320,743.13

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Solution

The third proportional to 213,450.75 and 320,743.13 is: 481,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,450.75 : 320,743.13 = 320,743.13 : x
  2. Step 2: Convert to fraction form
    213,450.75/320,743.13 = 320,743.13/x
  3. Step 3: Cross multiply
    213,450.75x = 320,743.13 × 320,743.13
  4. Step 4: Simplify right side
    213,450.75x = 102,876,152,234.77
  5. Step 5: Solve for x
    x = 102,876,152,234.77/213,450.75
  6. Step 6: Final answer
    x = 481,966.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.