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Finding the Fourth Proportional to 301.33, 451.29 and 192.79

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Solution

The fourth proportional to 301.33, 451.29 and 192.79 is: 288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.33 : 451.29 = 192.79 : x
  2. Step 2: Convert to fraction form
    301.33/451.29 = 192.79/x
  3. Step 3: Cross multiply
    301.33x = 451.29 × 192.79
  4. Step 4: Simplify right side
    301.33x = 87,004.20
  5. Step 5: Solve for x
    x = 87,004.20/301.33
  6. Step 6: Final answer
    x = 288.73

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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.