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Finding the Fourth Proportional to 627.64, 865.94 and 362.04

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Solution

The fourth proportional to 627.64, 865.94 and 362.04 is: 499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.64 : 865.94 = 362.04 : x
  2. Step 2: Convert to fraction form
    627.64/865.94 = 362.04/x
  3. Step 3: Cross multiply
    627.64x = 865.94 × 362.04
  4. Step 4: Simplify right side
    627.64x = 313,507.42
  5. Step 5: Solve for x
    x = 313,507.42/627.64
  6. Step 6: Final answer
    x = 499.50

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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.