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Finding the Fourth Proportional to 260.25, 388.39 and 232.89

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Solution

The fourth proportional to 260.25, 388.39 and 232.89 is: 347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.25 : 388.39 = 232.89 : x
  2. Step 2: Convert to fraction form
    260.25/388.39 = 232.89/x
  3. Step 3: Cross multiply
    260.25x = 388.39 × 232.89
  4. Step 4: Simplify right side
    260.25x = 90,450.21
  5. Step 5: Solve for x
    x = 90,450.21/260.25
  6. Step 6: Final answer
    x = 347.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.