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Finding the Fourth Proportional to 627.66, 941.86 and 262.42

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Solution

The fourth proportional to 627.66, 941.86 and 262.42 is: 393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.66 : 941.86 = 262.42 : x
  2. Step 2: Convert to fraction form
    627.66/941.86 = 262.42/x
  3. Step 3: Cross multiply
    627.66x = 941.86 × 262.42
  4. Step 4: Simplify right side
    627.66x = 247,165.91
  5. Step 5: Solve for x
    x = 247,165.91/627.66
  6. Step 6: Final answer
    x = 393.79

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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.