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Finding the Fourth Proportional to 550.09, 758.58 and 353.26

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Solution

The fourth proportional to 550.09, 758.58 and 353.26 is: 487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.09 : 758.58 = 353.26 : x
  2. Step 2: Convert to fraction form
    550.09/758.58 = 353.26/x
  3. Step 3: Cross multiply
    550.09x = 758.58 × 353.26
  4. Step 4: Simplify right side
    550.09x = 267,975.97
  5. Step 5: Solve for x
    x = 267,975.97/550.09
  6. Step 6: Final answer
    x = 487.15

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