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Finding the Fourth Proportional to 198.38, 297.32 and 176.66

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Solution

The fourth proportional to 198.38, 297.32 and 176.66 is: 264.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.38 : 297.32 = 176.66 : x
  2. Step 2: Convert to fraction form
    198.38/297.32 = 176.66/x
  3. Step 3: Cross multiply
    198.38x = 297.32 × 176.66
  4. Step 4: Simplify right side
    198.38x = 52,524.55
  5. Step 5: Solve for x
    x = 52,524.55/198.38
  6. Step 6: Final answer
    x = 264.77

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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.