Finding the Fourth Proportional to 209,545.11, 289,163.69 and 118,899.19
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Solution
The fourth proportional to 209,545.11, 289,163.69 and 118,899.19 is: 164,076.03
Step by Step Solution
- Step 1: Write the proportion equation
209,545.11 : 289,163.69 = 118,899.19 : x - Step 2: Convert to fraction form
209,545.11/289,163.69 = 118,899.19/x - Step 3: Cross multiply
209,545.11x = 289,163.69 × 118,899.19 - Step 4: Simplify right side
209,545.11x = 34,381,328,731.24 - Step 5: Solve for x
x = 34,381,328,731.24/209,545.11 - Step 6: Final answer
x = 164,076.03
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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.