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Finding the Fourth Proportional to 260.73, 359.81 and 191.03

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Solution

The fourth proportional to 260.73, 359.81 and 191.03 is: 263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.73 : 359.81 = 191.03 : x
  2. Step 2: Convert to fraction form
    260.73/359.81 = 191.03/x
  3. Step 3: Cross multiply
    260.73x = 359.81 × 191.03
  4. Step 4: Simplify right side
    260.73x = 68,731.75
  5. Step 5: Solve for x
    x = 68,731.75/260.73
  6. Step 6: Final answer
    x = 263.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.