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Finding the Fourth Proportional to 195.88, 290.14 and 193.72

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Solution

The fourth proportional to 195.88, 290.14 and 193.72 is: 286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.88 : 290.14 = 193.72 : x
  2. Step 2: Convert to fraction form
    195.88/290.14 = 193.72/x
  3. Step 3: Cross multiply
    195.88x = 290.14 × 193.72
  4. Step 4: Simplify right side
    195.88x = 56,205.92
  5. Step 5: Solve for x
    x = 56,205.92/195.88
  6. Step 6: Final answer
    x = 286.94

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.