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Finding the Fourth Proportional to 233.84, 321.58 and 189.04

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Solution

The fourth proportional to 233.84, 321.58 and 189.04 is: 259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.84 : 321.58 = 189.04 : x
  2. Step 2: Convert to fraction form
    233.84/321.58 = 189.04/x
  3. Step 3: Cross multiply
    233.84x = 321.58 × 189.04
  4. Step 4: Simplify right side
    233.84x = 60,791.48
  5. Step 5: Solve for x
    x = 60,791.48/233.84
  6. Step 6: Final answer
    x = 259.97

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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.