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Finding the Fourth Proportional to 270.60, 371.37 and 242.79

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Solution

The fourth proportional to 270.60, 371.37 and 242.79 is: 333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.60 : 371.37 = 242.79 : x
  2. Step 2: Convert to fraction form
    270.60/371.37 = 242.79/x
  3. Step 3: Cross multiply
    270.60x = 371.37 × 242.79
  4. Step 4: Simplify right side
    270.60x = 90,164.92
  5. Step 5: Solve for x
    x = 90,164.92/270.60
  6. Step 6: Final answer
    x = 333.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.