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Finding the Fourth Proportional to 322.98, 445.86 and 191.94

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Solution

The fourth proportional to 322.98, 445.86 and 191.94 is: 264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.98 : 445.86 = 191.94 : x
  2. Step 2: Convert to fraction form
    322.98/445.86 = 191.94/x
  3. Step 3: Cross multiply
    322.98x = 445.86 × 191.94
  4. Step 4: Simplify right side
    322.98x = 85,578.37
  5. Step 5: Solve for x
    x = 85,578.37/322.98
  6. Step 6: Final answer
    x = 264.96

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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.