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Finding the Fourth Proportional to 627.02, 940.37 and 297.86

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Solution

The fourth proportional to 627.02, 940.37 and 297.86 is: 446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.02 : 940.37 = 297.86 : x
  2. Step 2: Convert to fraction form
    627.02/940.37 = 297.86/x
  3. Step 3: Cross multiply
    627.02x = 940.37 × 297.86
  4. Step 4: Simplify right side
    627.02x = 280,099.47
  5. Step 5: Solve for x
    x = 280,099.47/627.02
  6. Step 6: Final answer
    x = 446.72

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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.