Finding the Fourth Proportional to 321,531.93, 443,682.09 and 185,609.66
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Solution
The fourth proportional to 321,531.93, 443,682.09 and 185,609.66 is: 256,122.88
Step by Step Solution
- Step 1: Write the proportion equation
321,531.93 : 443,682.09 = 185,609.66 : x - Step 2: Convert to fraction form
321,531.93/443,682.09 = 185,609.66/x - Step 3: Cross multiply
321,531.93x = 443,682.09 × 185,609.66 - Step 4: Simplify right side
321,531.93x = 82,351,682,982.19 - Step 5: Solve for x
x = 82,351,682,982.19/321,531.93 - Step 6: Final answer
x = 256,122.88
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1.5x scale
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.