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Finding the Fourth Proportional to 272.44, 375.96 and 156.04

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Solution

The fourth proportional to 272.44, 375.96 and 156.04 is: 215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.44 : 375.96 = 156.04 : x
  2. Step 2: Convert to fraction form
    272.44/375.96 = 156.04/x
  3. Step 3: Cross multiply
    272.44x = 375.96 × 156.04
  4. Step 4: Simplify right side
    272.44x = 58,664.80
  5. Step 5: Solve for x
    x = 58,664.80/272.44
  6. Step 6: Final answer
    x = 215.33

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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.