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Finding the Fourth Proportional to 280.73, 387.39 and 182.67

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Solution

The fourth proportional to 280.73, 387.39 and 182.67 is: 252.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280.73 : 387.39 = 182.67 : x
  2. Step 2: Convert to fraction form
    280.73/387.39 = 182.67/x
  3. Step 3: Cross multiply
    280.73x = 387.39 × 182.67
  4. Step 4: Simplify right side
    280.73x = 70,763.62
  5. Step 5: Solve for x
    x = 70,763.62/280.73
  6. Step 6: Final answer
    x = 252.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.