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Finding the Fourth Proportional to 591.15, 886.61 and 225.86

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Solution

The fourth proportional to 591.15, 886.61 and 225.86 is: 338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.15 : 886.61 = 225.86 : x
  2. Step 2: Convert to fraction form
    591.15/886.61 = 225.86/x
  3. Step 3: Cross multiply
    591.15x = 886.61 × 225.86
  4. Step 4: Simplify right side
    591.15x = 200,249.73
  5. Step 5: Solve for x
    x = 200,249.73/591.15
  6. Step 6: Final answer
    x = 338.75

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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.