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Finding the Fourth Proportional to 299.04, 411.84 and 273.12

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Solution

The fourth proportional to 299.04, 411.84 and 273.12 is: 376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.04 : 411.84 = 273.12 : x
  2. Step 2: Convert to fraction form
    299.04/411.84 = 273.12/x
  3. Step 3: Cross multiply
    299.04x = 411.84 × 273.12
  4. Step 4: Simplify right side
    299.04x = 112,481.74
  5. Step 5: Solve for x
    x = 112,481.74/299.04
  6. Step 6: Final answer
    x = 376.14

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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.