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Finding the Fourth Proportional to 303,733.56, 455,636.79 and 126,360.57

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Solution

The fourth proportional to 303,733.56, 455,636.79 and 126,360.57 is: 189,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,733.56 : 455,636.79 = 126,360.57 : x
  2. Step 2: Convert to fraction form
    303,733.56/455,636.79 = 126,360.57/x
  3. Step 3: Cross multiply
    303,733.56x = 455,636.79 × 126,360.57
  4. Step 4: Simplify right side
    303,733.56x = 57,574,524,497.37
  5. Step 5: Solve for x
    x = 57,574,524,497.37/303,733.56
  6. Step 6: Final answer
    x = 189,556.02

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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.