Finding the Fourth Proportional to 394,161.06, 543,942.12 and 212,873.03
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Solution
The fourth proportional to 394,161.06, 543,942.12 and 212,873.03 is: 293,764.70
Step by Step Solution
- Step 1: Write the proportion equation
394,161.06 : 543,942.12 = 212,873.03 : x - Step 2: Convert to fraction form
394,161.06/543,942.12 = 212,873.03/x - Step 3: Cross multiply
394,161.06x = 543,942.12 × 212,873.03 - Step 4: Simplify right side
394,161.06x = 115,790,604,509.31 - Step 5: Solve for x
x = 115,790,604,509.31/394,161.06 - Step 6: Final answer
x = 293,764.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.