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Finding the Fourth Proportional to 255,941.62, 383,912.43 and 131,203.06

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Solution

The fourth proportional to 255,941.62, 383,912.43 and 131,203.06 is: 196,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,941.62 : 383,912.43 = 131,203.06 : x
  2. Step 2: Convert to fraction form
    255,941.62/383,912.43 = 131,203.06/x
  3. Step 3: Cross multiply
    255,941.62x = 383,912.43 × 131,203.06
  4. Step 4: Simplify right side
    255,941.62x = 50,370,485,588.04
  5. Step 5: Solve for x
    x = 50,370,485,588.04/255,941.62
  6. Step 6: Final answer
    x = 196,804.59

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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.