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Finding the Fourth Proportional to 194.74, 292.14 and 170.12

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Solution

The fourth proportional to 194.74, 292.14 and 170.12 is: 255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.74 : 292.14 = 170.12 : x
  2. Step 2: Convert to fraction form
    194.74/292.14 = 170.12/x
  3. Step 3: Cross multiply
    194.74x = 292.14 × 170.12
  4. Step 4: Simplify right side
    194.74x = 49,699.59
  5. Step 5: Solve for x
    x = 49,699.59/194.74
  6. Step 6: Final answer
    x = 255.21

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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.