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Finding the Fourth Proportional to 209.37, 314.05 and 185.27

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Solution

The fourth proportional to 209.37, 314.05 and 185.27 is: 277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209.37 : 314.05 = 185.27 : x
  2. Step 2: Convert to fraction form
    209.37/314.05 = 185.27/x
  3. Step 3: Cross multiply
    209.37x = 314.05 × 185.27
  4. Step 4: Simplify right side
    209.37x = 58,185.97
  5. Step 5: Solve for x
    x = 58,185.97/209.37
  6. Step 6: Final answer
    x = 277.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.