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Finding the Fourth Proportional to 247.38, 369.32 and 245.67

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Solution

The fourth proportional to 247.38, 369.32 and 245.67 is: 366.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.38 : 369.32 = 245.67 : x
  2. Step 2: Convert to fraction form
    247.38/369.32 = 245.67/x
  3. Step 3: Cross multiply
    247.38x = 369.32 × 245.67
  4. Step 4: Simplify right side
    247.38x = 90,730.84
  5. Step 5: Solve for x
    x = 90,730.84/247.38
  6. Step 6: Final answer
    x = 366.77

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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.