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Finding the Fourth Proportional to 227.26, 313.31 and 180.79

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Solution

The fourth proportional to 227.26, 313.31 and 180.79 is: 249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.26 : 313.31 = 180.79 : x
  2. Step 2: Convert to fraction form
    227.26/313.31 = 180.79/x
  3. Step 3: Cross multiply
    227.26x = 313.31 × 180.79
  4. Step 4: Simplify right side
    227.26x = 56,643.31
  5. Step 5: Solve for x
    x = 56,643.31/227.26
  6. Step 6: Final answer
    x = 249.24

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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.