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Finding the Fourth Proportional to 627.87, 940.59 and 303.47

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Solution

The fourth proportional to 627.87, 940.59 and 303.47 is: 454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.87 : 940.59 = 303.47 : x
  2. Step 2: Convert to fraction form
    627.87/940.59 = 303.47/x
  3. Step 3: Cross multiply
    627.87x = 940.59 × 303.47
  4. Step 4: Simplify right side
    627.87x = 285,434.63
  5. Step 5: Solve for x
    x = 285,434.63/627.87
  6. Step 6: Final answer
    x = 454.61

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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.