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Finding the Fourth Proportional to 204.90, 306.86 and 200.04

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Solution

The fourth proportional to 204.90, 306.86 and 200.04 is: 299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.90 : 306.86 = 200.04 : x
  2. Step 2: Convert to fraction form
    204.90/306.86 = 200.04/x
  3. Step 3: Cross multiply
    204.90x = 306.86 × 200.04
  4. Step 4: Simplify right side
    204.90x = 61,384.27
  5. Step 5: Solve for x
    x = 61,384.27/204.90
  6. Step 6: Final answer
    x = 299.58

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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.