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Finding the Fourth Proportional to 271.49, 374.58 and 178.25

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Solution

The fourth proportional to 271.49, 374.58 and 178.25 is: 245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.49 : 374.58 = 178.25 : x
  2. Step 2: Convert to fraction form
    271.49/374.58 = 178.25/x
  3. Step 3: Cross multiply
    271.49x = 374.58 × 178.25
  4. Step 4: Simplify right side
    271.49x = 66,767.01
  5. Step 5: Solve for x
    x = 66,767.01/271.49
  6. Step 6: Final answer
    x = 245.93

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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.