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Finding the Fourth Proportional to 481.30, 716.76 and 450.16

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Solution

The fourth proportional to 481.30, 716.76 and 450.16 is: 670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.30 : 716.76 = 450.16 : x
  2. Step 2: Convert to fraction form
    481.30/716.76 = 450.16/x
  3. Step 3: Cross multiply
    481.30x = 716.76 × 450.16
  4. Step 4: Simplify right side
    481.30x = 322,657.58
  5. Step 5: Solve for x
    x = 322,657.58/481.30
  6. Step 6: Final answer
    x = 670.39

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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.