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Finding the Fourth Proportional to 550.01, 759.17 and 353.45

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Solution

The fourth proportional to 550.01, 759.17 and 353.45 is: 487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.01 : 759.17 = 353.45 : x
  2. Step 2: Convert to fraction form
    550.01/759.17 = 353.45/x
  3. Step 3: Cross multiply
    550.01x = 759.17 × 353.45
  4. Step 4: Simplify right side
    550.01x = 268,331.42
  5. Step 5: Solve for x
    x = 268,331.42/550.01
  6. Step 6: Final answer
    x = 487.86

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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.