Finding the Fourth Proportional to 311,905.05, 468,022.41 and 221,305.97
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Solution
The fourth proportional to 311,905.05, 468,022.41 and 221,305.97 is: 332,075.90
Step by Step Solution
- Step 1: Write the proportion equation
311,905.05 : 468,022.41 = 221,305.97 : x - Step 2: Convert to fraction form
311,905.05/468,022.41 = 221,305.97/x - Step 3: Cross multiply
311,905.05x = 468,022.41 × 221,305.97 - Step 4: Simplify right side
311,905.05x = 103,576,151,086.68 - Step 5: Solve for x
x = 103,576,151,086.68/311,905.05 - Step 6: Final answer
x = 332,075.90
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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.