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Finding the Fourth Proportional to 250.12, 374.95 and 111.22

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Solution

The fourth proportional to 250.12, 374.95 and 111.22 is: 166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.12 : 374.95 = 111.22 : x
  2. Step 2: Convert to fraction form
    250.12/374.95 = 111.22/x
  3. Step 3: Cross multiply
    250.12x = 374.95 × 111.22
  4. Step 4: Simplify right side
    250.12x = 41,703.45
  5. Step 5: Solve for x
    x = 41,703.45/250.12
  6. Step 6: Final answer
    x = 166.73

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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.