Finding the Fourth Proportional to 321,940.44, 444,397.05 and 276,435.68
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Solution
The fourth proportional to 321,940.44, 444,397.05 and 276,435.68 is: 381,583.62
Step by Step Solution
- Step 1: Write the proportion equation
321,940.44 : 444,397.05 = 276,435.68 : x - Step 2: Convert to fraction form
321,940.44/444,397.05 = 276,435.68/x - Step 3: Cross multiply
321,940.44x = 444,397.05 × 276,435.68 - Step 4: Simplify right side
321,940.44x = 122,847,198,484.76 - Step 5: Solve for x
x = 122,847,198,484.76/321,940.44 - Step 6: Final answer
x = 381,583.62
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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.