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Finding the Fourth Proportional to 203,044.40, 280,107.42 and 131,447.60

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Solution

The fourth proportional to 203,044.40, 280,107.42 and 131,447.60 is: 181,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,044.40 : 280,107.42 = 131,447.60 : x
  2. Step 2: Convert to fraction form
    203,044.40/280,107.42 = 131,447.60/x
  3. Step 3: Cross multiply
    203,044.40x = 280,107.42 × 131,447.60
  4. Step 4: Simplify right side
    203,044.40x = 36,819,448,101.19
  5. Step 5: Solve for x
    x = 36,819,448,101.19/203,044.40
  6. Step 6: Final answer
    x = 181,336.93

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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.