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Finding the Fourth Proportional to 627.63, 941.63 and 281.25

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Solution

The fourth proportional to 627.63, 941.63 and 281.25 is: 421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.63 : 941.63 = 281.25 : x
  2. Step 2: Convert to fraction form
    627.63/941.63 = 281.25/x
  3. Step 3: Cross multiply
    627.63x = 941.63 × 281.25
  4. Step 4: Simplify right side
    627.63x = 264,833.44
  5. Step 5: Solve for x
    x = 264,833.44/627.63
  6. Step 6: Final answer
    x = 421.96

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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.