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Finding the Fourth Proportional to 454.87, 627.71 and 268.37

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Solution

The fourth proportional to 454.87, 627.71 and 268.37 is: 370.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.87 : 627.71 = 268.37 : x
  2. Step 2: Convert to fraction form
    454.87/627.71 = 268.37/x
  3. Step 3: Cross multiply
    454.87x = 627.71 × 268.37
  4. Step 4: Simplify right side
    454.87x = 168,458.53
  5. Step 5: Solve for x
    x = 168,458.53/454.87
  6. Step 6: Final answer
    x = 370.34

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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.