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Finding the Fourth Proportional to 272.35, 375.90 and 167.56

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Solution

The fourth proportional to 272.35, 375.90 and 167.56 is: 231.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.35 : 375.90 = 167.56 : x
  2. Step 2: Convert to fraction form
    272.35/375.90 = 167.56/x
  3. Step 3: Cross multiply
    272.35x = 375.90 × 167.56
  4. Step 4: Simplify right side
    272.35x = 62,985.80
  5. Step 5: Solve for x
    x = 62,985.80/272.35
  6. Step 6: Final answer
    x = 231.27

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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.