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Finding the Fourth Proportional to 627.95, 941.22 and 281.48

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Solution

The fourth proportional to 627.95, 941.22 and 281.48 is: 421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.95 : 941.22 = 281.48 : x
  2. Step 2: Convert to fraction form
    627.95/941.22 = 281.48/x
  3. Step 3: Cross multiply
    627.95x = 941.22 × 281.48
  4. Step 4: Simplify right side
    627.95x = 264,929.90
  5. Step 5: Solve for x
    x = 264,929.90/627.95
  6. Step 6: Final answer
    x = 421.89

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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.