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Finding the Fourth Proportional to 481.71, 722.73 and 207.96

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Solution

The fourth proportional to 481.71, 722.73 and 207.96 is: 312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.71 : 722.73 = 207.96 : x
  2. Step 2: Convert to fraction form
    481.71/722.73 = 207.96/x
  3. Step 3: Cross multiply
    481.71x = 722.73 × 207.96
  4. Step 4: Simplify right side
    481.71x = 150,298.93
  5. Step 5: Solve for x
    x = 150,298.93/481.71
  6. Step 6: Final answer
    x = 312.01

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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.