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Finding the Fourth Proportional to 195.55, 293.16 and 73.74

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Solution

The fourth proportional to 195.55, 293.16 and 73.74 is: 110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.55 : 293.16 = 73.74 : x
  2. Step 2: Convert to fraction form
    195.55/293.16 = 73.74/x
  3. Step 3: Cross multiply
    195.55x = 293.16 × 73.74
  4. Step 4: Simplify right side
    195.55x = 21,617.62
  5. Step 5: Solve for x
    x = 21,617.62/195.55
  6. Step 6: Final answer
    x = 110.55

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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.