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Finding the Fourth Proportional to 274.38, 413.03 and 245.67

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Solution

The fourth proportional to 274.38, 413.03 and 245.67 is: 369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.38 : 413.03 = 245.67 : x
  2. Step 2: Convert to fraction form
    274.38/413.03 = 245.67/x
  3. Step 3: Cross multiply
    274.38x = 413.03 × 245.67
  4. Step 4: Simplify right side
    274.38x = 101,467.85
  5. Step 5: Solve for x
    x = 101,467.85/274.38
  6. Step 6: Final answer
    x = 369.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.