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Finding the Fourth Proportional to 573.93, 861.21 and 249.33

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Solution

The fourth proportional to 573.93, 861.21 and 249.33 is: 374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.93 : 861.21 = 249.33 : x
  2. Step 2: Convert to fraction form
    573.93/861.21 = 249.33/x
  3. Step 3: Cross multiply
    573.93x = 861.21 × 249.33
  4. Step 4: Simplify right side
    573.93x = 214,722.26
  5. Step 5: Solve for x
    x = 214,722.26/573.93
  6. Step 6: Final answer
    x = 374.12

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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.