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Finding the Fourth Proportional to 539.22, 743.79 and 373.44

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Solution

The fourth proportional to 539.22, 743.79 and 373.44 is: 515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.22 : 743.79 = 373.44 : x
  2. Step 2: Convert to fraction form
    539.22/743.79 = 373.44/x
  3. Step 3: Cross multiply
    539.22x = 743.79 × 373.44
  4. Step 4: Simplify right side
    539.22x = 277,760.94
  5. Step 5: Solve for x
    x = 277,760.94/539.22
  6. Step 6: Final answer
    x = 515.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.