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Finding the Fourth Proportional to 626.00, 938.03 and 443.75

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Solution

The fourth proportional to 626.00, 938.03 and 443.75 is: 664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.00 : 938.03 = 443.75 : x
  2. Step 2: Convert to fraction form
    626.00/938.03 = 443.75/x
  3. Step 3: Cross multiply
    626.00x = 938.03 × 443.75
  4. Step 4: Simplify right side
    626.00x = 416,243.90
  5. Step 5: Solve for x
    x = 416,243.90/626.00
  6. Step 6: Final answer
    x = 664.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.