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Finding the Fourth Proportional to 272.82, 376.86 and 253.38

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Solution

The fourth proportional to 272.82, 376.86 and 253.38 is: 350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.82 : 376.86 = 253.38 : x
  2. Step 2: Convert to fraction form
    272.82/376.86 = 253.38/x
  3. Step 3: Cross multiply
    272.82x = 376.86 × 253.38
  4. Step 4: Simplify right side
    272.82x = 95,488.79
  5. Step 5: Solve for x
    x = 95,488.79/272.82
  6. Step 6: Final answer
    x = 350.01

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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.