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Finding the Fourth Proportional to 194, 290.76 and 116.92

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Solution

The fourth proportional to 194, 290.76 and 116.92 is: 175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    194 : 290.76 = 116.92 : x
  2. Step 2: Convert to fraction form
    194/290.76 = 116.92/x
  3. Step 3: Cross multiply
    194x = 290.76 × 116.92
  4. Step 4: Simplify right side
    194x = 33,995.66
  5. Step 5: Solve for x
    x = 33,995.66/194
  6. Step 6: Final answer
    x = 175.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.