Home / 303,838.20-455,757.30-104,131.80

Finding the Fourth Proportional to 303,838.20, 455,757.30 and 104,131.80

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Solution

The fourth proportional to 303,838.20, 455,757.30 and 104,131.80 is: 156,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,838.20 : 455,757.30 = 104,131.80 : x
  2. Step 2: Convert to fraction form
    303,838.20/455,757.30 = 104,131.80/x
  3. Step 3: Cross multiply
    303,838.20x = 455,757.30 × 104,131.80
  4. Step 4: Simplify right side
    303,838.20x = 47,458,828,012.14
  5. Step 5: Solve for x
    x = 47,458,828,012.14/303,838.20
  6. Step 6: Final answer
    x = 156,197.70

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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.