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Finding the Fourth Proportional to 481.41, 722.07 and 156.75

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Solution

The fourth proportional to 481.41, 722.07 and 156.75 is: 235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.41 : 722.07 = 156.75 : x
  2. Step 2: Convert to fraction form
    481.41/722.07 = 156.75/x
  3. Step 3: Cross multiply
    481.41x = 722.07 × 156.75
  4. Step 4: Simplify right side
    481.41x = 113,184.47
  5. Step 5: Solve for x
    x = 113,184.47/481.41
  6. Step 6: Final answer
    x = 235.11

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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.