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Finding the Fourth Proportional to 246.04, 339.54 and 142.60

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Solution

The fourth proportional to 246.04, 339.54 and 142.60 is: 196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.04 : 339.54 = 142.60 : x
  2. Step 2: Convert to fraction form
    246.04/339.54 = 142.60/x
  3. Step 3: Cross multiply
    246.04x = 339.54 × 142.60
  4. Step 4: Simplify right side
    246.04x = 48,418.40
  5. Step 5: Solve for x
    x = 48,418.40/246.04
  6. Step 6: Final answer
    x = 196.79

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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.