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Finding the Fourth Proportional to 272.04, 375.40 and 161.52

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Solution

The fourth proportional to 272.04, 375.40 and 161.52 is: 222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.04 : 375.40 = 161.52 : x
  2. Step 2: Convert to fraction form
    272.04/375.40 = 161.52/x
  3. Step 3: Cross multiply
    272.04x = 375.40 × 161.52
  4. Step 4: Simplify right side
    272.04x = 60,634.61
  5. Step 5: Solve for x
    x = 60,634.61/272.04
  6. Step 6: Final answer
    x = 222.89

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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.