Home / 303,981.20-455,280.60-192,006.80

Finding the Fourth Proportional to 303,981.20, 455,280.60 and 192,006.80

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Solution

The fourth proportional to 303,981.20, 455,280.60 and 192,006.80 is: 287,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,981.20 : 455,280.60 = 192,006.80 : x
  2. Step 2: Convert to fraction form
    303,981.20/455,280.60 = 192,006.80/x
  3. Step 3: Cross multiply
    303,981.20x = 455,280.60 × 192,006.80
  4. Step 4: Simplify right side
    303,981.20x = 87,416,971,108.08
  5. Step 5: Solve for x
    x = 87,416,971,108.08/303,981.20
  6. Step 6: Final answer
    x = 287,573.61

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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.