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Finding the Fourth Proportional to 190.17, 283.95 and 131.94

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Solution

The fourth proportional to 190.17, 283.95 and 131.94 is: 197.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.17 : 283.95 = 131.94 : x
  2. Step 2: Convert to fraction form
    190.17/283.95 = 131.94/x
  3. Step 3: Cross multiply
    190.17x = 283.95 × 131.94
  4. Step 4: Simplify right side
    190.17x = 37,464.36
  5. Step 5: Solve for x
    x = 37,464.36/190.17
  6. Step 6: Final answer
    x = 197.00

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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.