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Finding the Fourth Proportional to 235.02, 324.42 and 169.68

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Solution

The fourth proportional to 235.02, 324.42 and 169.68 is: 234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.02 : 324.42 = 169.68 : x
  2. Step 2: Convert to fraction form
    235.02/324.42 = 169.68/x
  3. Step 3: Cross multiply
    235.02x = 324.42 × 169.68
  4. Step 4: Simplify right side
    235.02x = 55,047.59
  5. Step 5: Solve for x
    x = 55,047.59/235.02
  6. Step 6: Final answer
    x = 234.23

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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.