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Finding the Fourth Proportional to 481.93, 722.82 and 300.49

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Solution

The fourth proportional to 481.93, 722.82 and 300.49 is: 450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.93 : 722.82 = 300.49 : x
  2. Step 2: Convert to fraction form
    481.93/722.82 = 300.49/x
  3. Step 3: Cross multiply
    481.93x = 722.82 × 300.49
  4. Step 4: Simplify right side
    481.93x = 217,200.18
  5. Step 5: Solve for x
    x = 217,200.18/481.93
  6. Step 6: Final answer
    x = 450.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.