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Finding the Fourth Proportional to 671.06, 926.07 and 372.31

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Solution

The fourth proportional to 671.06, 926.07 and 372.31 is: 513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.06 : 926.07 = 372.31 : x
  2. Step 2: Convert to fraction form
    671.06/926.07 = 372.31/x
  3. Step 3: Cross multiply
    671.06x = 926.07 × 372.31
  4. Step 4: Simplify right side
    671.06x = 344,790.02
  5. Step 5: Solve for x
    x = 344,790.02/671.06
  6. Step 6: Final answer
    x = 513.80

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Why These Related Problems?

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