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Finding the Fourth Proportional to 194.71, 292.03 and 113.51

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Solution

The fourth proportional to 194.71, 292.03 and 113.51 is: 170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.71 : 292.03 = 113.51 : x
  2. Step 2: Convert to fraction form
    194.71/292.03 = 113.51/x
  3. Step 3: Cross multiply
    194.71x = 292.03 × 113.51
  4. Step 4: Simplify right side
    194.71x = 33,148.33
  5. Step 5: Solve for x
    x = 33,148.33/194.71
  6. Step 6: Final answer
    x = 170.24

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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.