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Finding the Fourth Proportional to 550.65, 759.89 and 301.96

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Solution

The fourth proportional to 550.65, 759.89 and 301.96 is: 416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.65 : 759.89 = 301.96 : x
  2. Step 2: Convert to fraction form
    550.65/759.89 = 301.96/x
  3. Step 3: Cross multiply
    550.65x = 759.89 × 301.96
  4. Step 4: Simplify right side
    550.65x = 229,454.87
  5. Step 5: Solve for x
    x = 229,454.87/550.65
  6. Step 6: Final answer
    x = 416.70

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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.