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Finding the Fourth Proportional to 629.55, 944.49 and 190.79

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Solution

The fourth proportional to 629.55, 944.49 and 190.79 is: 286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.55 : 944.49 = 190.79 : x
  2. Step 2: Convert to fraction form
    629.55/944.49 = 190.79/x
  3. Step 3: Cross multiply
    629.55x = 944.49 × 190.79
  4. Step 4: Simplify right side
    629.55x = 180,199.25
  5. Step 5: Solve for x
    x = 180,199.25/629.55
  6. Step 6: Final answer
    x = 286.24

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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.