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Finding the Fourth Proportional to 206.05, 308.44 and 192.73

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Solution

The fourth proportional to 206.05, 308.44 and 192.73 is: 288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.05 : 308.44 = 192.73 : x
  2. Step 2: Convert to fraction form
    206.05/308.44 = 192.73/x
  3. Step 3: Cross multiply
    206.05x = 308.44 × 192.73
  4. Step 4: Simplify right side
    206.05x = 59,445.64
  5. Step 5: Solve for x
    x = 59,445.64/206.05
  6. Step 6: Final answer
    x = 288.50

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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.