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Finding the Fourth Proportional to 626.92, 938.86 and 301.50

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Solution

The fourth proportional to 626.92, 938.86 and 301.50 is: 451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.92 : 938.86 = 301.50 : x
  2. Step 2: Convert to fraction form
    626.92/938.86 = 301.50/x
  3. Step 3: Cross multiply
    626.92x = 938.86 × 301.50
  4. Step 4: Simplify right side
    626.92x = 283,065.54
  5. Step 5: Solve for x
    x = 283,065.54/626.92
  6. Step 6: Final answer
    x = 451.52

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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.