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Finding the Fourth Proportional to 271.71, 375.00 and 178.53

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Solution

The fourth proportional to 271.71, 375.00 and 178.53 is: 246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.71 : 375.00 = 178.53 : x
  2. Step 2: Convert to fraction form
    271.71/375.00 = 178.53/x
  3. Step 3: Cross multiply
    271.71x = 375.00 × 178.53
  4. Step 4: Simplify right side
    271.71x = 66,949.49
  5. Step 5: Solve for x
    x = 66,949.49/271.71
  6. Step 6: Final answer
    x = 246.40

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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.