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Finding the Fourth Proportional to 481.14, 716.60 and 451.17

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Solution

The fourth proportional to 481.14, 716.60 and 451.17 is: 671.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.14 : 716.60 = 451.17 : x
  2. Step 2: Convert to fraction form
    481.14/716.60 = 451.17/x
  3. Step 3: Cross multiply
    481.14x = 716.60 × 451.17
  4. Step 4: Simplify right side
    481.14x = 323,308.42
  5. Step 5: Solve for x
    x = 323,308.42/481.14
  6. Step 6: Final answer
    x = 671.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.