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Finding the Fourth Proportional to 301.44, 451.84 and 147.27

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Solution

The fourth proportional to 301.44, 451.84 and 147.27 is: 220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.44 : 451.84 = 147.27 : x
  2. Step 2: Convert to fraction form
    301.44/451.84 = 147.27/x
  3. Step 3: Cross multiply
    301.44x = 451.84 × 147.27
  4. Step 4: Simplify right side
    301.44x = 66,542.48
  5. Step 5: Solve for x
    x = 66,542.48/301.44
  6. Step 6: Final answer
    x = 220.75

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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.