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Finding the Fourth Proportional to 246.83, 371.64 and 218.12

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Solution

The fourth proportional to 246.83, 371.64 and 218.12 is: 328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.83 : 371.64 = 218.12 : x
  2. Step 2: Convert to fraction form
    246.83/371.64 = 218.12/x
  3. Step 3: Cross multiply
    246.83x = 371.64 × 218.12
  4. Step 4: Simplify right side
    246.83x = 81,063.05
  5. Step 5: Solve for x
    x = 81,063.05/246.83
  6. Step 6: Final answer
    x = 328.41

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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.