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Finding the Fourth Proportional to 735.03, 1,102.46 and 388.22

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Solution

The fourth proportional to 735.03, 1,102.46 and 388.22 is: 582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.03 : 1,102.46 = 388.22 : x
  2. Step 2: Convert to fraction form
    735.03/1,102.46 = 388.22/x
  3. Step 3: Cross multiply
    735.03x = 1,102.46 × 388.22
  4. Step 4: Simplify right side
    735.03x = 427,997.02
  5. Step 5: Solve for x
    x = 427,997.02/735.03
  6. Step 6: Final answer
    x = 582.29

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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.