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Finding the Fourth Proportional to 204.18, 306.18 and 95.91

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Solution

The fourth proportional to 204.18, 306.18 and 95.91 is: 143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.18 : 306.18 = 95.91 : x
  2. Step 2: Convert to fraction form
    204.18/306.18 = 95.91/x
  3. Step 3: Cross multiply
    204.18x = 306.18 × 95.91
  4. Step 4: Simplify right side
    204.18x = 29,365.72
  5. Step 5: Solve for x
    x = 29,365.72/204.18
  6. Step 6: Final answer
    x = 143.82

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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.