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Finding the Fourth Proportional to 250.76, 376.38 and 193.60

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Solution

The fourth proportional to 250.76, 376.38 and 193.60 is: 290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.76 : 376.38 = 193.60 : x
  2. Step 2: Convert to fraction form
    250.76/376.38 = 193.60/x
  3. Step 3: Cross multiply
    250.76x = 376.38 × 193.60
  4. Step 4: Simplify right side
    250.76x = 72,868.98
  5. Step 5: Solve for x
    x = 72,868.98/250.76
  6. Step 6: Final answer
    x = 290.59

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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.