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Finding the Fourth Proportional to 195.56, 293.08 and 92.80

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Solution

The fourth proportional to 195.56, 293.08 and 92.80 is: 139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.56 : 293.08 = 92.80 : x
  2. Step 2: Convert to fraction form
    195.56/293.08 = 92.80/x
  3. Step 3: Cross multiply
    195.56x = 293.08 × 92.80
  4. Step 4: Simplify right side
    195.56x = 27,197.82
  5. Step 5: Solve for x
    x = 27,197.82/195.56
  6. Step 6: Final answer
    x = 139.08

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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.