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Finding the Fourth Proportional to 273.49, 408.26 and 235.22

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Solution

The fourth proportional to 273.49, 408.26 and 235.22 is: 351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.49 : 408.26 = 235.22 : x
  2. Step 2: Convert to fraction form
    273.49/408.26 = 235.22/x
  3. Step 3: Cross multiply
    273.49x = 408.26 × 235.22
  4. Step 4: Simplify right side
    273.49x = 96,030.44
  5. Step 5: Solve for x
    x = 96,030.44/273.49
  6. Step 6: Final answer
    x = 351.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.