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Finding the Third Proportional to 373.92 and 816.05

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Solution

The third proportional to 373.92 and 816.05 is: 1,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.92 : 816.05 = 816.05 : x
  2. Step 2: Convert to fraction form
    373.92/816.05 = 816.05/x
  3. Step 3: Cross multiply
    373.92x = 816.05 × 816.05
  4. Step 4: Simplify right side
    373.92x = 665,932.50
  5. Step 5: Solve for x
    x = 665,932.50/373.92
  6. Step 6: Final answer
    x = 1,780.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.