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Finding the Fourth Proportional to 231.95, 347.94 and 197.93

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Solution

The fourth proportional to 231.95, 347.94 and 197.93 is: 296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.95 : 347.94 = 197.93 : x
  2. Step 2: Convert to fraction form
    231.95/347.94 = 197.93/x
  3. Step 3: Cross multiply
    231.95x = 347.94 × 197.93
  4. Step 4: Simplify right side
    231.95x = 68,868.63
  5. Step 5: Solve for x
    x = 68,868.63/231.95
  6. Step 6: Final answer
    x = 296.91

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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.