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Finding the Fourth Proportional to 550.05, 759.20 and 375.38

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Solution

The fourth proportional to 550.05, 759.20 and 375.38 is: 518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.05 : 759.20 = 375.38 : x
  2. Step 2: Convert to fraction form
    550.05/759.20 = 375.38/x
  3. Step 3: Cross multiply
    550.05x = 759.20 × 375.38
  4. Step 4: Simplify right side
    550.05x = 284,982.82
  5. Step 5: Solve for x
    x = 284,982.82/550.05
  6. Step 6: Final answer
    x = 518.10

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Double scale
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1.5x scale

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.