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Finding the Third Proportional to 808.88 and 1,215.56

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Solution

The third proportional to 808.88 and 1,215.56 is: 1,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    808.88 : 1,215.56 = 1,215.56 : x
  2. Step 2: Convert to fraction form
    808.88/1,215.56 = 1,215.56/x
  3. Step 3: Cross multiply
    808.88x = 1,215.56 × 1,215.56
  4. Step 4: Simplify right side
    808.88x = 1,477,592.19
  5. Step 5: Solve for x
    x = 1,477,592.19/808.88
  6. Step 6: Final answer
    x = 1,826.73

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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.