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Finding the Fourth Proportional to 481.87, 722.71 and 300.39

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Solution

The fourth proportional to 481.87, 722.71 and 300.39 is: 450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.87 : 722.71 = 300.39 : x
  2. Step 2: Convert to fraction form
    481.87/722.71 = 300.39/x
  3. Step 3: Cross multiply
    481.87x = 722.71 × 300.39
  4. Step 4: Simplify right side
    481.87x = 217,094.86
  5. Step 5: Solve for x
    x = 217,094.86/481.87
  6. Step 6: Final answer
    x = 450.53

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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.