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Finding the Fourth Proportional to 189.59, 282.40 and 182.90

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Solution

The fourth proportional to 189.59, 282.40 and 182.90 is: 272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.59 : 282.40 = 182.90 : x
  2. Step 2: Convert to fraction form
    189.59/282.40 = 182.90/x
  3. Step 3: Cross multiply
    189.59x = 282.40 × 182.90
  4. Step 4: Simplify right side
    189.59x = 51,650.96
  5. Step 5: Solve for x
    x = 51,650.96/189.59
  6. Step 6: Final answer
    x = 272.44

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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.