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Finding the Fourth Proportional to 179.73, 248.19 and 130.74

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Solution

The fourth proportional to 179.73, 248.19 and 130.74 is: 180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.73 : 248.19 = 130.74 : x
  2. Step 2: Convert to fraction form
    179.73/248.19 = 130.74/x
  3. Step 3: Cross multiply
    179.73x = 248.19 × 130.74
  4. Step 4: Simplify right side
    179.73x = 32,448.36
  5. Step 5: Solve for x
    x = 32,448.36/179.73
  6. Step 6: Final answer
    x = 180.54

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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.