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Finding the Fourth Proportional to 299.66, 449.55 and 94.22

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Solution

The fourth proportional to 299.66, 449.55 and 94.22 is: 141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.66 : 449.55 = 94.22 : x
  2. Step 2: Convert to fraction form
    299.66/449.55 = 94.22/x
  3. Step 3: Cross multiply
    299.66x = 449.55 × 94.22
  4. Step 4: Simplify right side
    299.66x = 42,356.60
  5. Step 5: Solve for x
    x = 42,356.60/299.66
  6. Step 6: Final answer
    x = 141.35

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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.