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Finding the Fourth Proportional to 233.76, 350.72 and 131.13

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Solution

The fourth proportional to 233.76, 350.72 and 131.13 is: 196.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.76 : 350.72 = 131.13 : x
  2. Step 2: Convert to fraction form
    233.76/350.72 = 131.13/x
  3. Step 3: Cross multiply
    233.76x = 350.72 × 131.13
  4. Step 4: Simplify right side
    233.76x = 45,989.91
  5. Step 5: Solve for x
    x = 45,989.91/233.76
  6. Step 6: Final answer
    x = 196.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.