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Finding the Fourth Proportional to 629.66, 944.95 and 356.29

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Solution

The fourth proportional to 629.66, 944.95 and 356.29 is: 534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.66 : 944.95 = 356.29 : x
  2. Step 2: Convert to fraction form
    629.66/944.95 = 356.29/x
  3. Step 3: Cross multiply
    629.66x = 944.95 × 356.29
  4. Step 4: Simplify right side
    629.66x = 336,676.24
  5. Step 5: Solve for x
    x = 336,676.24/629.66
  6. Step 6: Final answer
    x = 534.70

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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.