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Finding the Fourth Proportional to 671.60, 926.92 and 376.96

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Solution

The fourth proportional to 671.60, 926.92 and 376.96 is: 520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.60 : 926.92 = 376.96 : x
  2. Step 2: Convert to fraction form
    671.60/926.92 = 376.96/x
  3. Step 3: Cross multiply
    671.60x = 926.92 × 376.96
  4. Step 4: Simplify right side
    671.60x = 349,411.98
  5. Step 5: Solve for x
    x = 349,411.98/671.60
  6. Step 6: Final answer
    x = 520.27

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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.