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Finding the Fourth Proportional to 190.00, 283.80 and 131.73

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Solution

The fourth proportional to 190.00, 283.80 and 131.73 is: 196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.00 : 283.80 = 131.73 : x
  2. Step 2: Convert to fraction form
    190.00/283.80 = 131.73/x
  3. Step 3: Cross multiply
    190.00x = 283.80 × 131.73
  4. Step 4: Simplify right side
    190.00x = 37,384.40
  5. Step 5: Solve for x
    x = 37,384.40/190.00
  6. Step 6: Final answer
    x = 196.76

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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.