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Finding the Fourth Proportional to 360.89, 541.22 and 239.79

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Solution

The fourth proportional to 360.89, 541.22 and 239.79 is: 359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.89 : 541.22 = 239.79 : x
  2. Step 2: Convert to fraction form
    360.89/541.22 = 239.79/x
  3. Step 3: Cross multiply
    360.89x = 541.22 × 239.79
  4. Step 4: Simplify right side
    360.89x = 129,777.94
  5. Step 5: Solve for x
    x = 129,777.94/360.89
  6. Step 6: Final answer
    x = 359.61

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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.