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Finding the Fourth Proportional to 626.02, 863.89 and 346.24

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Solution

The fourth proportional to 626.02, 863.89 and 346.24 is: 477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.02 : 863.89 = 346.24 : x
  2. Step 2: Convert to fraction form
    626.02/863.89 = 346.24/x
  3. Step 3: Cross multiply
    626.02x = 863.89 × 346.24
  4. Step 4: Simplify right side
    626.02x = 299,115.44
  5. Step 5: Solve for x
    x = 299,115.44/626.02
  6. Step 6: Final answer
    x = 477.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.