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Finding the Fourth Proportional to 493.31, 739.97 and 180.98

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Solution

The fourth proportional to 493.31, 739.97 and 180.98 is: 271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.31 : 739.97 = 180.98 : x
  2. Step 2: Convert to fraction form
    493.31/739.97 = 180.98/x
  3. Step 3: Cross multiply
    493.31x = 739.97 × 180.98
  4. Step 4: Simplify right side
    493.31x = 133,915.17
  5. Step 5: Solve for x
    x = 133,915.17/493.31
  6. Step 6: Final answer
    x = 271.46

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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.