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Finding the Fourth Proportional to 271.72, 375.06 and 187.72

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Solution

The fourth proportional to 271.72, 375.06 and 187.72 is: 259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.72 : 375.06 = 187.72 : x
  2. Step 2: Convert to fraction form
    271.72/375.06 = 187.72/x
  3. Step 3: Cross multiply
    271.72x = 375.06 × 187.72
  4. Step 4: Simplify right side
    271.72x = 70,406.26
  5. Step 5: Solve for x
    x = 70,406.26/271.72
  6. Step 6: Final answer
    x = 259.11

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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.