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Finding the Fourth Proportional to 247.22, 371.14 and 201.65

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Solution

The fourth proportional to 247.22, 371.14 and 201.65 is: 302.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.22 : 371.14 = 201.65 : x
  2. Step 2: Convert to fraction form
    247.22/371.14 = 201.65/x
  3. Step 3: Cross multiply
    247.22x = 371.14 × 201.65
  4. Step 4: Simplify right side
    247.22x = 74,840.80
  5. Step 5: Solve for x
    x = 74,840.80/247.22
  6. Step 6: Final answer
    x = 302.74

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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.