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Finding the Fourth Proportional to 250.82, 376.27 and 142.38

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Solution

The fourth proportional to 250.82, 376.27 and 142.38 is: 213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.82 : 376.27 = 142.38 : x
  2. Step 2: Convert to fraction form
    250.82/376.27 = 142.38/x
  3. Step 3: Cross multiply
    250.82x = 376.27 × 142.38
  4. Step 4: Simplify right side
    250.82x = 53,574.43
  5. Step 5: Solve for x
    x = 53,574.43/250.82
  6. Step 6: Final answer
    x = 213.60

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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.