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Finding the Fourth Proportional to 271.66, 404.62 and 268.06

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Solution

The fourth proportional to 271.66, 404.62 and 268.06 is: 399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.66 : 404.62 = 268.06 : x
  2. Step 2: Convert to fraction form
    271.66/404.62 = 268.06/x
  3. Step 3: Cross multiply
    271.66x = 404.62 × 268.06
  4. Step 4: Simplify right side
    271.66x = 108,462.44
  5. Step 5: Solve for x
    x = 108,462.44/271.66
  6. Step 6: Final answer
    x = 399.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.