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Finding the Fourth Proportional to 629.46, 943.97 and 347.96

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Solution

The fourth proportional to 629.46, 943.97 and 347.96 is: 521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.46 : 943.97 = 347.96 : x
  2. Step 2: Convert to fraction form
    629.46/943.97 = 347.96/x
  3. Step 3: Cross multiply
    629.46x = 943.97 × 347.96
  4. Step 4: Simplify right side
    629.46x = 328,464.42
  5. Step 5: Solve for x
    x = 328,464.42/629.46
  6. Step 6: Final answer
    x = 521.82

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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.