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Finding the Fourth Proportional to 273.33, 376.18 and 261.03

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Solution

The fourth proportional to 273.33, 376.18 and 261.03 is: 359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.33 : 376.18 = 261.03 : x
  2. Step 2: Convert to fraction form
    273.33/376.18 = 261.03/x
  3. Step 3: Cross multiply
    273.33x = 376.18 × 261.03
  4. Step 4: Simplify right side
    273.33x = 98,194.27
  5. Step 5: Solve for x
    x = 98,194.27/273.33
  6. Step 6: Final answer
    x = 359.25

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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.