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Finding the Fourth Proportional to 376.96, 567.55 and 331.60

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Solution

The fourth proportional to 376.96, 567.55 and 331.60 is: 499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.96 : 567.55 = 331.60 : x
  2. Step 2: Convert to fraction form
    376.96/567.55 = 331.60/x
  3. Step 3: Cross multiply
    376.96x = 567.55 × 331.60
  4. Step 4: Simplify right side
    376.96x = 188,199.58
  5. Step 5: Solve for x
    x = 188,199.58/376.96
  6. Step 6: Final answer
    x = 499.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.