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Finding the Fourth Proportional to 626.09, 939.60 and 297.03

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Solution

The fourth proportional to 626.09, 939.60 and 297.03 is: 445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.09 : 939.60 = 297.03 : x
  2. Step 2: Convert to fraction form
    626.09/939.60 = 297.03/x
  3. Step 3: Cross multiply
    626.09x = 939.60 × 297.03
  4. Step 4: Simplify right side
    626.09x = 279,089.27
  5. Step 5: Solve for x
    x = 279,089.27/626.09
  6. Step 6: Final answer
    x = 445.76

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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.