Home / 236,865.60-355,183.20-131,572.80

Finding the Fourth Proportional to 236,865.60, 355,183.20 and 131,572.80

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Solution

The fourth proportional to 236,865.60, 355,183.20 and 131,572.80 is: 197,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,865.60 : 355,183.20 = 131,572.80 : x
  2. Step 2: Convert to fraction form
    236,865.60/355,183.20 = 131,572.80/x
  3. Step 3: Cross multiply
    236,865.60x = 355,183.20 × 131,572.80
  4. Step 4: Simplify right side
    236,865.60x = 46,732,448,136.96
  5. Step 5: Solve for x
    x = 46,732,448,136.96/236,865.60
  6. Step 6: Final answer
    x = 197,295.21

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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.