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Finding the Fourth Proportional to 272.07, 374.83 and 187.96

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Solution

The fourth proportional to 272.07, 374.83 and 187.96 is: 258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.07 : 374.83 = 187.96 : x
  2. Step 2: Convert to fraction form
    272.07/374.83 = 187.96/x
  3. Step 3: Cross multiply
    272.07x = 374.83 × 187.96
  4. Step 4: Simplify right side
    272.07x = 70,453.05
  5. Step 5: Solve for x
    x = 70,453.05/272.07
  6. Step 6: Final answer
    x = 258.95

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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.