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Finding the Fourth Proportional to 793.06, 1,189.62 and 273.05

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Solution

The fourth proportional to 793.06, 1,189.62 and 273.05 is: 409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.06 : 1,189.62 = 273.05 : x
  2. Step 2: Convert to fraction form
    793.06/1,189.62 = 273.05/x
  3. Step 3: Cross multiply
    793.06x = 1,189.62 × 273.05
  4. Step 4: Simplify right side
    793.06x = 324,830.18
  5. Step 5: Solve for x
    x = 324,830.18/793.06
  6. Step 6: Final answer
    x = 409.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.