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Finding the Fourth Proportional to 272.73, 376.31 and 162.25

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Solution

The fourth proportional to 272.73, 376.31 and 162.25 is: 223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.73 : 376.31 = 162.25 : x
  2. Step 2: Convert to fraction form
    272.73/376.31 = 162.25/x
  3. Step 3: Cross multiply
    272.73x = 376.31 × 162.25
  4. Step 4: Simplify right side
    272.73x = 61,054.55
  5. Step 5: Solve for x
    x = 61,054.55/272.73
  6. Step 6: Final answer
    x = 223.86

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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.