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Finding the Fourth Proportional to 246.09, 339.44 and 172.38

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Solution

The fourth proportional to 246.09, 339.44 and 172.38 is: 237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.09 : 339.44 = 172.38 : x
  2. Step 2: Convert to fraction form
    246.09/339.44 = 172.38/x
  3. Step 3: Cross multiply
    246.09x = 339.44 × 172.38
  4. Step 4: Simplify right side
    246.09x = 58,511.81
  5. Step 5: Solve for x
    x = 58,511.81/246.09
  6. Step 6: Final answer
    x = 237.77

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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.