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Finding the Fourth Proportional to 671.54, 1,007.39 and 232.83

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Solution

The fourth proportional to 671.54, 1,007.39 and 232.83 is: 349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.54 : 1,007.39 = 232.83 : x
  2. Step 2: Convert to fraction form
    671.54/1,007.39 = 232.83/x
  3. Step 3: Cross multiply
    671.54x = 1,007.39 × 232.83
  4. Step 4: Simplify right side
    671.54x = 234,550.61
  5. Step 5: Solve for x
    x = 234,550.61/671.54
  6. Step 6: Final answer
    x = 349.27

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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.