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Finding the Fourth Proportional to 272.57, 376.09 and 179.47

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Solution

The fourth proportional to 272.57, 376.09 and 179.47 is: 247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.57 : 376.09 = 179.47 : x
  2. Step 2: Convert to fraction form
    272.57/376.09 = 179.47/x
  3. Step 3: Cross multiply
    272.57x = 376.09 × 179.47
  4. Step 4: Simplify right side
    272.57x = 67,495.79
  5. Step 5: Solve for x
    x = 67,495.79/272.57
  6. Step 6: Final answer
    x = 247.63

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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.