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Finding the Fourth Proportional to 272.08, 375.24 and 194.80

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Solution

The fourth proportional to 272.08, 375.24 and 194.80 is: 268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.08 : 375.24 = 194.80 : x
  2. Step 2: Convert to fraction form
    272.08/375.24 = 194.80/x
  3. Step 3: Cross multiply
    272.08x = 375.24 × 194.80
  4. Step 4: Simplify right side
    272.08x = 73,096.75
  5. Step 5: Solve for x
    x = 73,096.75/272.08
  6. Step 6: Final answer
    x = 268.66

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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.