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Finding the Fourth Proportional to 324.76, 448.68 and 226.96

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Solution

The fourth proportional to 324.76, 448.68 and 226.96 is: 313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.76 : 448.68 = 226.96 : x
  2. Step 2: Convert to fraction form
    324.76/448.68 = 226.96/x
  3. Step 3: Cross multiply
    324.76x = 448.68 × 226.96
  4. Step 4: Simplify right side
    324.76x = 101,832.41
  5. Step 5: Solve for x
    x = 101,832.41/324.76
  6. Step 6: Final answer
    x = 313.56

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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.