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Finding the Fourth Proportional to 195.30, 292.78 and 73.54

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Solution

The fourth proportional to 195.30, 292.78 and 73.54 is: 110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.30 : 292.78 = 73.54 : x
  2. Step 2: Convert to fraction form
    195.30/292.78 = 73.54/x
  3. Step 3: Cross multiply
    195.30x = 292.78 × 73.54
  4. Step 4: Simplify right side
    195.30x = 21,531.04
  5. Step 5: Solve for x
    x = 21,531.04/195.30
  6. Step 6: Final answer
    x = 110.25

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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.