Finding the Fourth Proportional to 321,415.94, 443,524.18 and 178,163.80
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Solution
The fourth proportional to 321,415.94, 443,524.18 and 178,163.80 is: 245,849.52
Step by Step Solution
- Step 1: Write the proportion equation
321,415.94 : 443,524.18 = 178,163.80 : x - Step 2: Convert to fraction form
321,415.94/443,524.18 = 178,163.80/x - Step 3: Cross multiply
321,415.94x = 443,524.18 × 178,163.80 - Step 4: Simplify right side
321,415.94x = 79,019,953,300.68 - Step 5: Solve for x
x = 79,019,953,300.68/321,415.94 - Step 6: Final answer
x = 245,849.52
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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.