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Finding the Fourth Proportional to 239.79, 331.05 and 184.41

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Solution

The fourth proportional to 239.79, 331.05 and 184.41 is: 254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.79 : 331.05 = 184.41 : x
  2. Step 2: Convert to fraction form
    239.79/331.05 = 184.41/x
  3. Step 3: Cross multiply
    239.79x = 331.05 × 184.41
  4. Step 4: Simplify right side
    239.79x = 61,050.86
  5. Step 5: Solve for x
    x = 61,050.86/239.79
  6. Step 6: Final answer
    x = 254.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.