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Finding the Fourth Proportional to 629.81, 944.37 and 304.86

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Solution

The fourth proportional to 629.81, 944.37 and 304.86 is: 457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.81 : 944.37 = 304.86 : x
  2. Step 2: Convert to fraction form
    629.81/944.37 = 304.86/x
  3. Step 3: Cross multiply
    629.81x = 944.37 × 304.86
  4. Step 4: Simplify right side
    629.81x = 287,900.64
  5. Step 5: Solve for x
    x = 287,900.64/629.81
  6. Step 6: Final answer
    x = 457.13

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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.