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Finding the Fourth Proportional to 626.61, 939.24 and 310.22

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Solution

The fourth proportional to 626.61, 939.24 and 310.22 is: 464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.61 : 939.24 = 310.22 : x
  2. Step 2: Convert to fraction form
    626.61/939.24 = 310.22/x
  3. Step 3: Cross multiply
    626.61x = 939.24 × 310.22
  4. Step 4: Simplify right side
    626.61x = 291,366.34
  5. Step 5: Solve for x
    x = 291,366.34/626.61
  6. Step 6: Final answer
    x = 464.99

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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.