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Finding the Fourth Proportional to 550.47, 827.33 and 359.31

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Solution

The fourth proportional to 550.47, 827.33 and 359.31 is: 540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.47 : 827.33 = 359.31 : x
  2. Step 2: Convert to fraction form
    550.47/827.33 = 359.31/x
  3. Step 3: Cross multiply
    550.47x = 827.33 × 359.31
  4. Step 4: Simplify right side
    550.47x = 297,266.15
  5. Step 5: Solve for x
    x = 297,266.15/550.47
  6. Step 6: Final answer
    x = 540.02

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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.