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Finding the Fourth Proportional to 481.64, 663.75 and 376.56

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Solution

The fourth proportional to 481.64, 663.75 and 376.56 is: 518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.64 : 663.75 = 376.56 : x
  2. Step 2: Convert to fraction form
    481.64/663.75 = 376.56/x
  3. Step 3: Cross multiply
    481.64x = 663.75 × 376.56
  4. Step 4: Simplify right side
    481.64x = 249,941.70
  5. Step 5: Solve for x
    x = 249,941.70/481.64
  6. Step 6: Final answer
    x = 518.94

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