Finding the Fourth Proportional to 200,082.21, 276,122.30 and 115,226.61
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Solution
The fourth proportional to 200,082.21, 276,122.30 and 115,226.61 is: 159,017.82
Step by Step Solution
- Step 1: Write the proportion equation
200,082.21 : 276,122.30 = 115,226.61 : x - Step 2: Convert to fraction form
200,082.21/276,122.30 = 115,226.61/x - Step 3: Cross multiply
200,082.21x = 276,122.30 × 115,226.61 - Step 4: Simplify right side
200,082.21x = 31,816,635,998.27 - Step 5: Solve for x
x = 31,816,635,998.27/200,082.21 - Step 6: Final answer
x = 159,017.82
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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.