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Finding the Fourth Proportional to 550.21, 759.29 and 301.54

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Solution

The fourth proportional to 550.21, 759.29 and 301.54 is: 416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.21 : 759.29 = 301.54 : x
  2. Step 2: Convert to fraction form
    550.21/759.29 = 301.54/x
  3. Step 3: Cross multiply
    550.21x = 759.29 × 301.54
  4. Step 4: Simplify right side
    550.21x = 228,958.01
  5. Step 5: Solve for x
    x = 228,958.01/550.21
  6. Step 6: Final answer
    x = 416.13

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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.