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Finding the Fourth Proportional to 253.98, 350.48 and 141.94

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Solution

The fourth proportional to 253.98, 350.48 and 141.94 is: 195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.98 : 350.48 = 141.94 : x
  2. Step 2: Convert to fraction form
    253.98/350.48 = 141.94/x
  3. Step 3: Cross multiply
    253.98x = 350.48 × 141.94
  4. Step 4: Simplify right side
    253.98x = 49,747.92
  5. Step 5: Solve for x
    x = 49,747.92/253.98
  6. Step 6: Final answer
    x = 195.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.