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Finding the Fourth Proportional to 192.31, 265.08 and 133.39

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Solution

The fourth proportional to 192.31, 265.08 and 133.39 is: 183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.31 : 265.08 = 133.39 : x
  2. Step 2: Convert to fraction form
    192.31/265.08 = 133.39/x
  3. Step 3: Cross multiply
    192.31x = 265.08 × 133.39
  4. Step 4: Simplify right side
    192.31x = 35,357.03
  5. Step 5: Solve for x
    x = 35,357.03/192.31
  6. Step 6: Final answer
    x = 183.85

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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.