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Finding the Fourth Proportional to 273.09, 378.87 and 263.37

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Solution

The fourth proportional to 273.09, 378.87 and 263.37 is: 365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.09 : 378.87 = 263.37 : x
  2. Step 2: Convert to fraction form
    273.09/378.87 = 263.37/x
  3. Step 3: Cross multiply
    273.09x = 378.87 × 263.37
  4. Step 4: Simplify right side
    273.09x = 99,782.99
  5. Step 5: Solve for x
    x = 99,782.99/273.09
  6. Step 6: Final answer
    x = 365.39

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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.