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Finding the Fourth Proportional to 627.20, 941.04 and 338.24

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Solution

The fourth proportional to 627.20, 941.04 and 338.24 is: 507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.20 : 941.04 = 338.24 : x
  2. Step 2: Convert to fraction form
    627.20/941.04 = 338.24/x
  3. Step 3: Cross multiply
    627.20x = 941.04 × 338.24
  4. Step 4: Simplify right side
    627.20x = 318,297.37
  5. Step 5: Solve for x
    x = 318,297.37/627.20
  6. Step 6: Final answer
    x = 507.49

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1.5x scale

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.