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Finding the Fourth Proportional to 272.89, 376.76 and 173.37

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Solution

The fourth proportional to 272.89, 376.76 and 173.37 is: 239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.89 : 376.76 = 173.37 : x
  2. Step 2: Convert to fraction form
    272.89/376.76 = 173.37/x
  3. Step 3: Cross multiply
    272.89x = 376.76 × 173.37
  4. Step 4: Simplify right side
    272.89x = 65,317.79
  5. Step 5: Solve for x
    x = 65,317.79/272.89
  6. Step 6: Final answer
    x = 239.35

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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.