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Finding the Fourth Proportional to 270.70, 371.62 and 233.80

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Solution

The fourth proportional to 270.70, 371.62 and 233.80 is: 320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.70 : 371.62 = 233.80 : x
  2. Step 2: Convert to fraction form
    270.70/371.62 = 233.80/x
  3. Step 3: Cross multiply
    270.70x = 371.62 × 233.80
  4. Step 4: Simplify right side
    270.70x = 86,884.76
  5. Step 5: Solve for x
    x = 86,884.76/270.70
  6. Step 6: Final answer
    x = 320.96

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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.