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Finding the Fourth Proportional to 236,834.40, 355,251.60 and 205,039.20

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Solution

The fourth proportional to 236,834.40, 355,251.60 and 205,039.20 is: 307,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,834.40 : 355,251.60 = 205,039.20 : x
  2. Step 2: Convert to fraction form
    236,834.40/355,251.60 = 205,039.20/x
  3. Step 3: Cross multiply
    236,834.40x = 355,251.60 × 205,039.20
  4. Step 4: Simplify right side
    236,834.40x = 72,840,503,862.72
  5. Step 5: Solve for x
    x = 72,840,503,862.72/236,834.40
  6. Step 6: Final answer
    x = 307,558.80

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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.