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Finding the Fourth Proportional to 189.96, 283.58 and 168.27

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Solution

The fourth proportional to 189.96, 283.58 and 168.27 is: 251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.96 : 283.58 = 168.27 : x
  2. Step 2: Convert to fraction form
    189.96/283.58 = 168.27/x
  3. Step 3: Cross multiply
    189.96x = 283.58 × 168.27
  4. Step 4: Simplify right side
    189.96x = 47,717.17
  5. Step 5: Solve for x
    x = 47,717.17/189.96
  6. Step 6: Final answer
    x = 251.20

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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.