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Finding the Fourth Proportional to 735.78, 1,104.18 and 273.98

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Solution

The fourth proportional to 735.78, 1,104.18 and 273.98 is: 411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.78 : 1,104.18 = 273.98 : x
  2. Step 2: Convert to fraction form
    735.78/1,104.18 = 273.98/x
  3. Step 3: Cross multiply
    735.78x = 1,104.18 × 273.98
  4. Step 4: Simplify right side
    735.78x = 302,523.24
  5. Step 5: Solve for x
    x = 302,523.24/735.78
  6. Step 6: Final answer
    x = 411.16

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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.