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Finding the Fourth Proportional to 239,951.25, 331,132.74 and 139,355.73

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Solution

The fourth proportional to 239,951.25, 331,132.74 and 139,355.73 is: 192,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,951.25 : 331,132.74 = 139,355.73 : x
  2. Step 2: Convert to fraction form
    239,951.25/331,132.74 = 139,355.73/x
  3. Step 3: Cross multiply
    239,951.25x = 331,132.74 × 139,355.73
  4. Step 4: Simplify right side
    239,951.25x = 46,145,244,709.60
  5. Step 5: Solve for x
    x = 46,145,244,709.60/239,951.25
  6. Step 6: Final answer
    x = 192,310.92

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1.5x scale

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.