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Finding the Fourth Proportional to 626.23, 939.41 and 366.62

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Solution

The fourth proportional to 626.23, 939.41 and 366.62 is: 549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.23 : 939.41 = 366.62 : x
  2. Step 2: Convert to fraction form
    626.23/939.41 = 366.62/x
  3. Step 3: Cross multiply
    626.23x = 939.41 × 366.62
  4. Step 4: Simplify right side
    626.23x = 344,404.66
  5. Step 5: Solve for x
    x = 344,404.66/626.23
  6. Step 6: Final answer
    x = 549.97

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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.