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Finding the Fourth Proportional to 235.38, 324.84 and 131.88

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Solution

The fourth proportional to 235.38, 324.84 and 131.88 is: 182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.38 : 324.84 = 131.88 : x
  2. Step 2: Convert to fraction form
    235.38/324.84 = 131.88/x
  3. Step 3: Cross multiply
    235.38x = 324.84 × 131.88
  4. Step 4: Simplify right side
    235.38x = 42,839.90
  5. Step 5: Solve for x
    x = 42,839.90/235.38
  6. Step 6: Final answer
    x = 182.00

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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.