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Finding the Fourth Proportional to 629.12, 943.98 and 304.52

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Solution

The fourth proportional to 629.12, 943.98 and 304.52 is: 456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.12 : 943.98 = 304.52 : x
  2. Step 2: Convert to fraction form
    629.12/943.98 = 304.52/x
  3. Step 3: Cross multiply
    629.12x = 943.98 × 304.52
  4. Step 4: Simplify right side
    629.12x = 287,456.07
  5. Step 5: Solve for x
    x = 287,456.07/629.12
  6. Step 6: Final answer
    x = 456.92

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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.