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Finding the Fourth Proportional to 250.14, 374.60 and 191.66

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Solution

The fourth proportional to 250.14, 374.60 and 191.66 is: 287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.14 : 374.60 = 191.66 : x
  2. Step 2: Convert to fraction form
    250.14/374.60 = 191.66/x
  3. Step 3: Cross multiply
    250.14x = 374.60 × 191.66
  4. Step 4: Simplify right side
    250.14x = 71,795.84
  5. Step 5: Solve for x
    x = 71,795.84/250.14
  6. Step 6: Final answer
    x = 287.02

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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.