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Finding the Fourth Proportional to 299.08, 447.66 and 190.48

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Solution

The fourth proportional to 299.08, 447.66 and 190.48 is: 285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.08 : 447.66 = 190.48 : x
  2. Step 2: Convert to fraction form
    299.08/447.66 = 190.48/x
  3. Step 3: Cross multiply
    299.08x = 447.66 × 190.48
  4. Step 4: Simplify right side
    299.08x = 85,270.28
  5. Step 5: Solve for x
    x = 85,270.28/299.08
  6. Step 6: Final answer
    x = 285.11

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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.