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Finding the Fourth Proportional to 272.10, 374.56 and 263.22

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Solution

The fourth proportional to 272.10, 374.56 and 263.22 is: 362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.10 : 374.56 = 263.22 : x
  2. Step 2: Convert to fraction form
    272.10/374.56 = 263.22/x
  3. Step 3: Cross multiply
    272.10x = 374.56 × 263.22
  4. Step 4: Simplify right side
    272.10x = 98,591.68
  5. Step 5: Solve for x
    x = 98,591.68/272.10
  6. Step 6: Final answer
    x = 362.34

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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.