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Finding the Fourth Proportional to 235.77, 324.41 and 229.73

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Solution

The fourth proportional to 235.77, 324.41 and 229.73 is: 316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.77 : 324.41 = 229.73 : x
  2. Step 2: Convert to fraction form
    235.77/324.41 = 229.73/x
  3. Step 3: Cross multiply
    235.77x = 324.41 × 229.73
  4. Step 4: Simplify right side
    235.77x = 74,525.54
  5. Step 5: Solve for x
    x = 74,525.54/235.77
  6. Step 6: Final answer
    x = 316.10

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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.