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Finding the Fourth Proportional to 272.44, 375.46 and 230.86

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Solution

The fourth proportional to 272.44, 375.46 and 230.86 is: 318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.44 : 375.46 = 230.86 : x
  2. Step 2: Convert to fraction form
    272.44/375.46 = 230.86/x
  3. Step 3: Cross multiply
    272.44x = 375.46 × 230.86
  4. Step 4: Simplify right side
    272.44x = 86,678.70
  5. Step 5: Solve for x
    x = 86,678.70/272.44
  6. Step 6: Final answer
    x = 318.16

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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.