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Finding the Fourth Proportional to 247.72, 373.96 and 246.28

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Solution

The fourth proportional to 247.72, 373.96 and 246.28 is: 371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.72 : 373.96 = 246.28 : x
  2. Step 2: Convert to fraction form
    247.72/373.96 = 246.28/x
  3. Step 3: Cross multiply
    247.72x = 373.96 × 246.28
  4. Step 4: Simplify right side
    247.72x = 92,098.87
  5. Step 5: Solve for x
    x = 92,098.87/247.72
  6. Step 6: Final answer
    x = 371.79

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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.