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Finding the Fourth Proportional to 227.41, 313.77 and 131.57

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Solution

The fourth proportional to 227.41, 313.77 and 131.57 is: 181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.41 : 313.77 = 131.57 : x
  2. Step 2: Convert to fraction form
    227.41/313.77 = 131.57/x
  3. Step 3: Cross multiply
    227.41x = 313.77 × 131.57
  4. Step 4: Simplify right side
    227.41x = 41,282.72
  5. Step 5: Solve for x
    x = 41,282.72/227.41
  6. Step 6: Final answer
    x = 181.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.