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Finding the Fourth Proportional to 224.81, 310.38 and 141.98

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Solution

The fourth proportional to 224.81, 310.38 and 141.98 is: 196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.81 : 310.38 = 141.98 : x
  2. Step 2: Convert to fraction form
    224.81/310.38 = 141.98/x
  3. Step 3: Cross multiply
    224.81x = 310.38 × 141.98
  4. Step 4: Simplify right side
    224.81x = 44,067.75
  5. Step 5: Solve for x
    x = 44,067.75/224.81
  6. Step 6: Final answer
    x = 196.03

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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.