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Finding the Fourth Proportional to 180.59, 248.82 and 122.27

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Solution

The fourth proportional to 180.59, 248.82 and 122.27 is: 168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.59 : 248.82 = 122.27 : x
  2. Step 2: Convert to fraction form
    180.59/248.82 = 122.27/x
  3. Step 3: Cross multiply
    180.59x = 248.82 × 122.27
  4. Step 4: Simplify right side
    180.59x = 30,421.98
  5. Step 5: Solve for x
    x = 30,421.98/180.59
  6. Step 6: Final answer
    x = 168.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.