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Finding the Fourth Proportional to 271.06, 406.99 and 134.57

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Solution

The fourth proportional to 271.06, 406.99 and 134.57 is: 202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.06 : 406.99 = 134.57 : x
  2. Step 2: Convert to fraction form
    271.06/406.99 = 134.57/x
  3. Step 3: Cross multiply
    271.06x = 406.99 × 134.57
  4. Step 4: Simplify right side
    271.06x = 54,768.64
  5. Step 5: Solve for x
    x = 54,768.64/271.06
  6. Step 6: Final answer
    x = 202.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.