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Finding the Fourth Proportional to 272.81, 376.35 and 179.66

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Solution

The fourth proportional to 272.81, 376.35 and 179.66 is: 247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.81 : 376.35 = 179.66 : x
  2. Step 2: Convert to fraction form
    272.81/376.35 = 179.66/x
  3. Step 3: Cross multiply
    272.81x = 376.35 × 179.66
  4. Step 4: Simplify right side
    272.81x = 67,613.16
  5. Step 5: Solve for x
    x = 67,613.16/272.81
  6. Step 6: Final answer
    x = 247.84

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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.