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Finding the Fourth Proportional to 627.85, 941.76 and 165.61

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Solution

The fourth proportional to 627.85, 941.76 and 165.61 is: 248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.85 : 941.76 = 165.61 : x
  2. Step 2: Convert to fraction form
    627.85/941.76 = 165.61/x
  3. Step 3: Cross multiply
    627.85x = 941.76 × 165.61
  4. Step 4: Simplify right side
    627.85x = 155,966.05
  5. Step 5: Solve for x
    x = 155,966.05/627.85
  6. Step 6: Final answer
    x = 248.41

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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.