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Finding the Fourth Proportional to 271.70, 375.23 and 219.80

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Solution

The fourth proportional to 271.70, 375.23 and 219.80 is: 303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.70 : 375.23 = 219.80 : x
  2. Step 2: Convert to fraction form
    271.70/375.23 = 219.80/x
  3. Step 3: Cross multiply
    271.70x = 375.23 × 219.80
  4. Step 4: Simplify right side
    271.70x = 82,477.04
  5. Step 5: Solve for x
    x = 82,477.04/271.70
  6. Step 6: Final answer
    x = 303.56

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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.