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Finding the Fourth Proportional to 271.49, 371.45 and 270.35

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Solution

The fourth proportional to 271.49, 371.45 and 270.35 is: 369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.49 : 371.45 = 270.35 : x
  2. Step 2: Convert to fraction form
    271.49/371.45 = 270.35/x
  3. Step 3: Cross multiply
    271.49x = 371.45 × 270.35
  4. Step 4: Simplify right side
    271.49x = 100,420.33
  5. Step 5: Solve for x
    x = 100,420.33/271.49
  6. Step 6: Final answer
    x = 369.88

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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.