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Finding the Fourth Proportional to 629.28, 943.95 and 336.66

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Solution

The fourth proportional to 629.28, 943.95 and 336.66 is: 505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.28 : 943.95 = 336.66 : x
  2. Step 2: Convert to fraction form
    629.28/943.95 = 336.66/x
  3. Step 3: Cross multiply
    629.28x = 943.95 × 336.66
  4. Step 4: Simplify right side
    629.28x = 317,790.21
  5. Step 5: Solve for x
    x = 317,790.21/629.28
  6. Step 6: Final answer
    x = 505.01

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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.