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Finding the Fourth Proportional to 629.99, 944.42 and 322.22

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Solution

The fourth proportional to 629.99, 944.42 and 322.22 is: 483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.99 : 944.42 = 322.22 : x
  2. Step 2: Convert to fraction form
    629.99/944.42 = 322.22/x
  3. Step 3: Cross multiply
    629.99x = 944.42 × 322.22
  4. Step 4: Simplify right side
    629.99x = 304,311.01
  5. Step 5: Solve for x
    x = 304,311.01/629.99
  6. Step 6: Final answer
    x = 483.04

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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.