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Finding the Fourth Proportional to 627.97, 866.57 and 348.18

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Solution

The fourth proportional to 627.97, 866.57 and 348.18 is: 480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.97 : 866.57 = 348.18 : x
  2. Step 2: Convert to fraction form
    627.97/866.57 = 348.18/x
  3. Step 3: Cross multiply
    627.97x = 866.57 × 348.18
  4. Step 4: Simplify right side
    627.97x = 301,720.60
  5. Step 5: Solve for x
    x = 301,720.60/627.97
  6. Step 6: Final answer
    x = 480.47

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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.