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Finding the Fourth Proportional to 247.15, 336.50 and 246.38

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Solution

The fourth proportional to 247.15, 336.50 and 246.38 is: 335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.15 : 336.50 = 246.38 : x
  2. Step 2: Convert to fraction form
    247.15/336.50 = 246.38/x
  3. Step 3: Cross multiply
    247.15x = 336.50 × 246.38
  4. Step 4: Simplify right side
    247.15x = 82,908.41
  5. Step 5: Solve for x
    x = 82,908.41/247.15
  6. Step 6: Final answer
    x = 335.45

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.