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Finding the Fourth Proportional to 626.59, 939.85 and 300.97

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Solution

The fourth proportional to 626.59, 939.85 and 300.97 is: 451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.59 : 939.85 = 300.97 : x
  2. Step 2: Convert to fraction form
    626.59/939.85 = 300.97/x
  3. Step 3: Cross multiply
    626.59x = 939.85 × 300.97
  4. Step 4: Simplify right side
    626.59x = 282,866.65
  5. Step 5: Solve for x
    x = 282,866.65/626.59
  6. Step 6: Final answer
    x = 451.44

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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.