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Finding the Fourth Proportional to 250.80, 375.98 and 113.88

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Solution

The fourth proportional to 250.80, 375.98 and 113.88 is: 170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.80 : 375.98 = 113.88 : x
  2. Step 2: Convert to fraction form
    250.80/375.98 = 113.88/x
  3. Step 3: Cross multiply
    250.80x = 375.98 × 113.88
  4. Step 4: Simplify right side
    250.80x = 42,816.60
  5. Step 5: Solve for x
    x = 42,816.60/250.80
  6. Step 6: Final answer
    x = 170.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.