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Finding the Fourth Proportional to 247.90, 342.18 and 241.30

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Solution

The fourth proportional to 247.90, 342.18 and 241.30 is: 333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.90 : 342.18 = 241.30 : x
  2. Step 2: Convert to fraction form
    247.90/342.18 = 241.30/x
  3. Step 3: Cross multiply
    247.90x = 342.18 × 241.30
  4. Step 4: Simplify right side
    247.90x = 82,568.03
  5. Step 5: Solve for x
    x = 82,568.03/247.90
  6. Step 6: Final answer
    x = 333.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.