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Finding the Fourth Proportional to 179.77, 248.04 and 129.94

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Solution

The fourth proportional to 179.77, 248.04 and 129.94 is: 179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.77 : 248.04 = 129.94 : x
  2. Step 2: Convert to fraction form
    179.77/248.04 = 129.94/x
  3. Step 3: Cross multiply
    179.77x = 248.04 × 129.94
  4. Step 4: Simplify right side
    179.77x = 32,230.32
  5. Step 5: Solve for x
    x = 32,230.32/179.77
  6. Step 6: Final answer
    x = 179.29

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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.