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Finding the Fourth Proportional to 626.35, 938.89 and 236.29

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Solution

The fourth proportional to 626.35, 938.89 and 236.29 is: 354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.35 : 938.89 = 236.29 : x
  2. Step 2: Convert to fraction form
    626.35/938.89 = 236.29/x
  3. Step 3: Cross multiply
    626.35x = 938.89 × 236.29
  4. Step 4: Simplify right side
    626.35x = 221,850.32
  5. Step 5: Solve for x
    x = 221,850.32/626.35
  6. Step 6: Final answer
    x = 354.20

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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.