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Finding the Fourth Proportional to 481.74, 722.51 and 250.79

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Solution

The fourth proportional to 481.74, 722.51 and 250.79 is: 376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.74 : 722.51 = 250.79 : x
  2. Step 2: Convert to fraction form
    481.74/722.51 = 250.79/x
  3. Step 3: Cross multiply
    481.74x = 722.51 × 250.79
  4. Step 4: Simplify right side
    481.74x = 181,193.42
  5. Step 5: Solve for x
    x = 181,193.42/481.74
  6. Step 6: Final answer
    x = 376.12

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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.