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Finding the Fourth Proportional to 271.77, 375.09 and 173.64

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Solution

The fourth proportional to 271.77, 375.09 and 173.64 is: 239.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.77 : 375.09 = 173.64 : x
  2. Step 2: Convert to fraction form
    271.77/375.09 = 173.64/x
  3. Step 3: Cross multiply
    271.77x = 375.09 × 173.64
  4. Step 4: Simplify right side
    271.77x = 65,130.63
  5. Step 5: Solve for x
    x = 65,130.63/271.77
  6. Step 6: Final answer
    x = 239.65

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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.