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Finding the Fourth Proportional to 260.84, 391.97 and 245.93

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Solution

The fourth proportional to 260.84, 391.97 and 245.93 is: 369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.84 : 391.97 = 245.93 : x
  2. Step 2: Convert to fraction form
    260.84/391.97 = 245.93/x
  3. Step 3: Cross multiply
    260.84x = 391.97 × 245.93
  4. Step 4: Simplify right side
    260.84x = 96,395.84
  5. Step 5: Solve for x
    x = 96,395.84/260.84
  6. Step 6: Final answer
    x = 369.56

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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.