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Finding the Fourth Proportional to 253.91, 350.31 and 226.37

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Solution

The fourth proportional to 253.91, 350.31 and 226.37 is: 312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.91 : 350.31 = 226.37 : x
  2. Step 2: Convert to fraction form
    253.91/350.31 = 226.37/x
  3. Step 3: Cross multiply
    253.91x = 350.31 × 226.37
  4. Step 4: Simplify right side
    253.91x = 79,297.92
  5. Step 5: Solve for x
    x = 79,297.92/253.91
  6. Step 6: Final answer
    x = 312.31

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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.