Finding the Fourth Proportional to 215,849.26, 323,771.86 and 121,079.26
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Solution
The fourth proportional to 215,849.26, 323,771.86 and 121,079.26 is: 181,617.75
Step by Step Solution
- Step 1: Write the proportion equation
215,849.26 : 323,771.86 = 121,079.26 : x - Step 2: Convert to fraction form
215,849.26/323,771.86 = 121,079.26/x - Step 3: Cross multiply
215,849.26x = 323,771.86 × 121,079.26 - Step 4: Simplify right side
215,849.26x = 39,202,057,217.62 - Step 5: Solve for x
x = 39,202,057,217.62/215,849.26 - Step 6: Final answer
x = 181,617.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.