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Finding the Fourth Proportional to 179.92, 268.60 and 162.64

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Solution

The fourth proportional to 179.92, 268.60 and 162.64 is: 242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.92 : 268.60 = 162.64 : x
  2. Step 2: Convert to fraction form
    179.92/268.60 = 162.64/x
  3. Step 3: Cross multiply
    179.92x = 268.60 × 162.64
  4. Step 4: Simplify right side
    179.92x = 43,685.10
  5. Step 5: Solve for x
    x = 43,685.10/179.92
  6. Step 6: Final answer
    x = 242.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.