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Finding the Fourth Proportional to 260.91, 361.69 and 250.65

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Solution

The fourth proportional to 260.91, 361.69 and 250.65 is: 347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.91 : 361.69 = 250.65 : x
  2. Step 2: Convert to fraction form
    260.91/361.69 = 250.65/x
  3. Step 3: Cross multiply
    260.91x = 361.69 × 250.65
  4. Step 4: Simplify right side
    260.91x = 90,656.97
  5. Step 5: Solve for x
    x = 90,656.97/260.91
  6. Step 6: Final answer
    x = 347.46

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.