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Finding the Fourth Proportional to 262.50, 362.12 and 196.98

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Solution

The fourth proportional to 262.50, 362.12 and 196.98 is: 271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.50 : 362.12 = 196.98 : x
  2. Step 2: Convert to fraction form
    262.50/362.12 = 196.98/x
  3. Step 3: Cross multiply
    262.50x = 362.12 × 196.98
  4. Step 4: Simplify right side
    262.50x = 71,329.41
  5. Step 5: Solve for x
    x = 71,329.41/262.50
  6. Step 6: Final answer
    x = 271.73

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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.