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Finding the Fourth Proportional to 671.33, 1,007.27 and 295.89

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Solution

The fourth proportional to 671.33, 1,007.27 and 295.89 is: 443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.33 : 1,007.27 = 295.89 : x
  2. Step 2: Convert to fraction form
    671.33/1,007.27 = 295.89/x
  3. Step 3: Cross multiply
    671.33x = 1,007.27 × 295.89
  4. Step 4: Simplify right side
    671.33x = 298,046.72
  5. Step 5: Solve for x
    x = 298,046.72/671.33
  6. Step 6: Final answer
    x = 443.96

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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.