Finding the Fourth Proportional to 220,186.11, 303,857.42 and 129,545.49
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Solution
The fourth proportional to 220,186.11, 303,857.42 and 129,545.49 is: 178,773.12
Step by Step Solution
- Step 1: Write the proportion equation
220,186.11 : 303,857.42 = 129,545.49 : x - Step 2: Convert to fraction form
220,186.11/303,857.42 = 129,545.49/x - Step 3: Cross multiply
220,186.11x = 303,857.42 × 129,545.49 - Step 4: Simplify right side
220,186.11x = 39,363,357,716.31 - Step 5: Solve for x
x = 39,363,357,716.31/220,186.11 - Step 6: Final answer
x = 178,773.12
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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.