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Finding the Fourth Proportional to 195.46, 293.48 and 155.21

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Solution

The fourth proportional to 195.46, 293.48 and 155.21 is: 233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.46 : 293.48 = 155.21 : x
  2. Step 2: Convert to fraction form
    195.46/293.48 = 155.21/x
  3. Step 3: Cross multiply
    195.46x = 293.48 × 155.21
  4. Step 4: Simplify right side
    195.46x = 45,549.95
  5. Step 5: Solve for x
    x = 45,549.95/195.46
  6. Step 6: Final answer
    x = 233.04

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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.