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Finding the Fourth Proportional to 260.27, 387.34 and 250.55

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Solution

The fourth proportional to 260.27, 387.34 and 250.55 is: 372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.27 : 387.34 = 250.55 : x
  2. Step 2: Convert to fraction form
    260.27/387.34 = 250.55/x
  3. Step 3: Cross multiply
    260.27x = 387.34 × 250.55
  4. Step 4: Simplify right side
    260.27x = 97,048.04
  5. Step 5: Solve for x
    x = 97,048.04/260.27
  6. Step 6: Final answer
    x = 372.87

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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.