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Finding the Fourth Proportional to 196.85, 295.74 and 185.77

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Solution

The fourth proportional to 196.85, 295.74 and 185.77 is: 279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.85 : 295.74 = 185.77 : x
  2. Step 2: Convert to fraction form
    196.85/295.74 = 185.77/x
  3. Step 3: Cross multiply
    196.85x = 295.74 × 185.77
  4. Step 4: Simplify right side
    196.85x = 54,939.62
  5. Step 5: Solve for x
    x = 54,939.62/196.85
  6. Step 6: Final answer
    x = 279.09

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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.