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Finding the Third Proportional to 400.75 and 935.88

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Solution

The third proportional to 400.75 and 935.88 is: 2,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.75 : 935.88 = 935.88 : x
  2. Step 2: Convert to fraction form
    400.75/935.88 = 935.88/x
  3. Step 3: Cross multiply
    400.75x = 935.88 × 935.88
  4. Step 4: Simplify right side
    400.75x = 875,862.02
  5. Step 5: Solve for x
    x = 875,862.02/400.75
  6. Step 6: Final answer
    x = 2,185.56

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.