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Finding the Fourth Proportional to 273.27, 412.88 and 270.84

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Solution

The fourth proportional to 273.27, 412.88 and 270.84 is: 409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.27 : 412.88 = 270.84 : x
  2. Step 2: Convert to fraction form
    273.27/412.88 = 270.84/x
  3. Step 3: Cross multiply
    273.27x = 412.88 × 270.84
  4. Step 4: Simplify right side
    273.27x = 111,827.28
  5. Step 5: Solve for x
    x = 111,827.28/273.27
  6. Step 6: Final answer
    x = 409.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.