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Finding the Fourth Proportional to 270.06, 372.49 and 238.94

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Solution

The fourth proportional to 270.06, 372.49 and 238.94 is: 329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.06 : 372.49 = 238.94 : x
  2. Step 2: Convert to fraction form
    270.06/372.49 = 238.94/x
  3. Step 3: Cross multiply
    270.06x = 372.49 × 238.94
  4. Step 4: Simplify right side
    270.06x = 89,002.76
  5. Step 5: Solve for x
    x = 89,002.76/270.06
  6. Step 6: Final answer
    x = 329.57

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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.