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Finding the Fourth Proportional to 272.86, 375.96 and 185.38

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Solution

The fourth proportional to 272.86, 375.96 and 185.38 is: 255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.86 : 375.96 = 185.38 : x
  2. Step 2: Convert to fraction form
    272.86/375.96 = 185.38/x
  3. Step 3: Cross multiply
    272.86x = 375.96 × 185.38
  4. Step 4: Simplify right side
    272.86x = 69,695.46
  5. Step 5: Solve for x
    x = 69,695.46/272.86
  6. Step 6: Final answer
    x = 255.43

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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.