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Finding the Fourth Proportional to 735.23, 1,103.04 and 324.46

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Solution

The fourth proportional to 735.23, 1,103.04 and 324.46 is: 486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.23 : 1,103.04 = 324.46 : x
  2. Step 2: Convert to fraction form
    735.23/1,103.04 = 324.46/x
  3. Step 3: Cross multiply
    735.23x = 1,103.04 × 324.46
  4. Step 4: Simplify right side
    735.23x = 357,892.36
  5. Step 5: Solve for x
    x = 357,892.36/735.23
  6. Step 6: Final answer
    x = 486.78

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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.