Finding the Fourth Proportional to 216,648.26, 324,853.27 and 66,847.70
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Solution
The fourth proportional to 216,648.26, 324,853.27 and 66,847.70 is: 100,234.80
Step by Step Solution
- Step 1: Write the proportion equation
216,648.26 : 324,853.27 = 66,847.70 : x - Step 2: Convert to fraction form
216,648.26/324,853.27 = 66,847.70/x - Step 3: Cross multiply
216,648.26x = 324,853.27 × 66,847.70 - Step 4: Simplify right side
216,648.26x = 21,715,693,936.98 - Step 5: Solve for x
x = 21,715,693,936.98/216,648.26 - Step 6: Final answer
x = 100,234.80
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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.