Finding the Fourth Proportional to 216,674.19, 324,745.09 and 121,704.73
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Solution
The fourth proportional to 216,674.19, 324,745.09 and 121,704.73 is: 182,407.57
Step by Step Solution
- Step 1: Write the proportion equation
216,674.19 : 324,745.09 = 121,704.73 : x - Step 2: Convert to fraction form
216,674.19/324,745.09 = 121,704.73/x - Step 3: Cross multiply
216,674.19x = 324,745.09 × 121,704.73 - Step 4: Simplify right side
216,674.19x = 39,523,013,497.28 - Step 5: Solve for x
x = 39,523,013,497.28/216,674.19 - Step 6: Final answer
x = 182,407.57
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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.