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Finding the Fourth Proportional to 299.56, 449.26 and 104.53

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Solution

The fourth proportional to 299.56, 449.26 and 104.53 is: 156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.56 : 449.26 = 104.53 : x
  2. Step 2: Convert to fraction form
    299.56/449.26 = 104.53/x
  3. Step 3: Cross multiply
    299.56x = 449.26 × 104.53
  4. Step 4: Simplify right side
    299.56x = 46,961.15
  5. Step 5: Solve for x
    x = 46,961.15/299.56
  6. Step 6: Final answer
    x = 156.77

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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.