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Finding the Fourth Proportional to 195.98, 270.30 and 125.99

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Solution

The fourth proportional to 195.98, 270.30 and 125.99 is: 173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.98 : 270.30 = 125.99 : x
  2. Step 2: Convert to fraction form
    195.98/270.30 = 125.99/x
  3. Step 3: Cross multiply
    195.98x = 270.30 × 125.99
  4. Step 4: Simplify right side
    195.98x = 34,053.75
  5. Step 5: Solve for x
    x = 34,053.75/195.98
  6. Step 6: Final answer
    x = 173.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.