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Finding the Fourth Proportional to 629.92, 869.26 and 350.15

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Solution

The fourth proportional to 629.92, 869.26 and 350.15 is: 483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.92 : 869.26 = 350.15 : x
  2. Step 2: Convert to fraction form
    629.92/869.26 = 350.15/x
  3. Step 3: Cross multiply
    629.92x = 869.26 × 350.15
  4. Step 4: Simplify right side
    629.92x = 304,371.39
  5. Step 5: Solve for x
    x = 304,371.39/629.92
  6. Step 6: Final answer
    x = 483.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.