Finding the Fourth Proportional to 407,121.92, 561,837.26 and 225,827.94
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Solution
The fourth proportional to 407,121.92, 561,837.26 and 225,827.94 is: 311,647.56
Step by Step Solution
- Step 1: Write the proportion equation
407,121.92 : 561,837.26 = 225,827.94 : x - Step 2: Convert to fraction form
407,121.92/561,837.26 = 225,827.94/x - Step 3: Cross multiply
407,121.92x = 561,837.26 × 225,827.94 - Step 4: Simplify right side
407,121.92x = 126,878,551,041.04 - Step 5: Solve for x
x = 126,878,551,041.04/407,121.92 - Step 6: Final answer
x = 311,647.56
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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.