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Finding the Fourth Proportional to 272.83, 379.03 and 270.28

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Solution

The fourth proportional to 272.83, 379.03 and 270.28 is: 375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.83 : 379.03 = 270.28 : x
  2. Step 2: Convert to fraction form
    272.83/379.03 = 270.28/x
  3. Step 3: Cross multiply
    272.83x = 379.03 × 270.28
  4. Step 4: Simplify right side
    272.83x = 102,444.23
  5. Step 5: Solve for x
    x = 102,444.23/272.83
  6. Step 6: Final answer
    x = 375.49

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.