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Finding the Fourth Proportional to 246.75, 369.99 and 84.39

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Solution

The fourth proportional to 246.75, 369.99 and 84.39 is: 126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.75 : 369.99 = 84.39 : x
  2. Step 2: Convert to fraction form
    246.75/369.99 = 84.39/x
  3. Step 3: Cross multiply
    246.75x = 369.99 × 84.39
  4. Step 4: Simplify right side
    246.75x = 31,223.46
  5. Step 5: Solve for x
    x = 31,223.46/246.75
  6. Step 6: Final answer
    x = 126.54

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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.