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Finding the Fourth Proportional to 272.34, 375.66 and 168.84

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Solution

The fourth proportional to 272.34, 375.66 and 168.84 is: 232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.34 : 375.66 = 168.84 : x
  2. Step 2: Convert to fraction form
    272.34/375.66 = 168.84/x
  3. Step 3: Cross multiply
    272.34x = 375.66 × 168.84
  4. Step 4: Simplify right side
    272.34x = 63,426.43
  5. Step 5: Solve for x
    x = 63,426.43/272.34
  6. Step 6: Final answer
    x = 232.89

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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.