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Finding the Fourth Proportional to 233.30, 350.12 and 111.56

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Solution

The fourth proportional to 233.30, 350.12 and 111.56 is: 167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.30 : 350.12 = 111.56 : x
  2. Step 2: Convert to fraction form
    233.30/350.12 = 111.56/x
  3. Step 3: Cross multiply
    233.30x = 350.12 × 111.56
  4. Step 4: Simplify right side
    233.30x = 39,059.39
  5. Step 5: Solve for x
    x = 39,059.39/233.30
  6. Step 6: Final answer
    x = 167.42

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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.