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Finding the Fourth Proportional to 246.03, 339.52 and 139.71

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Solution

The fourth proportional to 246.03, 339.52 and 139.71 is: 192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.03 : 339.52 = 139.71 : x
  2. Step 2: Convert to fraction form
    246.03/339.52 = 139.71/x
  3. Step 3: Cross multiply
    246.03x = 339.52 × 139.71
  4. Step 4: Simplify right side
    246.03x = 47,435.37
  5. Step 5: Solve for x
    x = 47,435.37/246.03
  6. Step 6: Final answer
    x = 192.80

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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.