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Finding the Fourth Proportional to 189.63, 282.68 and 179.37

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Solution

The fourth proportional to 189.63, 282.68 and 179.37 is: 267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.63 : 282.68 = 179.37 : x
  2. Step 2: Convert to fraction form
    189.63/282.68 = 179.37/x
  3. Step 3: Cross multiply
    189.63x = 282.68 × 179.37
  4. Step 4: Simplify right side
    189.63x = 50,703.41
  5. Step 5: Solve for x
    x = 50,703.41/189.63
  6. Step 6: Final answer
    x = 267.38

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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.