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Finding the Fourth Proportional to 179.79, 248 and 109.83

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Solution

The fourth proportional to 179.79, 248 and 109.83 is: 151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.79 : 248 = 109.83 : x
  2. Step 2: Convert to fraction form
    179.79/248 = 109.83/x
  3. Step 3: Cross multiply
    179.79x = 248 × 109.83
  4. Step 4: Simplify right side
    179.79x = 27,237.84
  5. Step 5: Solve for x
    x = 27,237.84/179.79
  6. Step 6: Final answer
    x = 151.50

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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.