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Finding the Fourth Proportional to 358.97, 537.83 and 255.74

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Solution

The fourth proportional to 358.97, 537.83 and 255.74 is: 383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.97 : 537.83 = 255.74 : x
  2. Step 2: Convert to fraction form
    358.97/537.83 = 255.74/x
  3. Step 3: Cross multiply
    358.97x = 537.83 × 255.74
  4. Step 4: Simplify right side
    358.97x = 137,540.68
  5. Step 5: Solve for x
    x = 137,540.68/358.97
  6. Step 6: Final answer
    x = 383.16

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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.