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Finding the Fourth Proportional to 629.93, 944.79 and 197.05

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Solution

The fourth proportional to 629.93, 944.79 and 197.05 is: 295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.93 : 944.79 = 197.05 : x
  2. Step 2: Convert to fraction form
    629.93/944.79 = 197.05/x
  3. Step 3: Cross multiply
    629.93x = 944.79 × 197.05
  4. Step 4: Simplify right side
    629.93x = 186,170.87
  5. Step 5: Solve for x
    x = 186,170.87/629.93
  6. Step 6: Final answer
    x = 295.54

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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.