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Finding the Fourth Proportional to 195.46, 291.90 and 168.13

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Solution

The fourth proportional to 195.46, 291.90 and 168.13 is: 251.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.46 : 291.90 = 168.13 : x
  2. Step 2: Convert to fraction form
    195.46/291.90 = 168.13/x
  3. Step 3: Cross multiply
    195.46x = 291.90 × 168.13
  4. Step 4: Simplify right side
    195.46x = 49,076.50
  5. Step 5: Solve for x
    x = 49,076.50/195.46
  6. Step 6: Final answer
    x = 251.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.