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Finding the Fourth Proportional to 232.03, 320.21 and 133.79

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Solution

The fourth proportional to 232.03, 320.21 and 133.79 is: 184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.03 : 320.21 = 133.79 : x
  2. Step 2: Convert to fraction form
    232.03/320.21 = 133.79/x
  3. Step 3: Cross multiply
    232.03x = 320.21 × 133.79
  4. Step 4: Simplify right side
    232.03x = 42,840.90
  5. Step 5: Solve for x
    x = 42,840.90/232.03
  6. Step 6: Final answer
    x = 184.64

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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.