Finding the Fourth Proportional to 311,230.26, 466,476.30 and 279,491.40
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Solution
The fourth proportional to 311,230.26, 466,476.30 and 279,491.40 is: 418,905.65
Step by Step Solution
- Step 1: Write the proportion equation
311,230.26 : 466,476.30 = 279,491.40 : x - Step 2: Convert to fraction form
311,230.26/466,476.30 = 279,491.40/x - Step 3: Cross multiply
311,230.26x = 466,476.30 × 279,491.40 - Step 4: Simplify right side
311,230.26x = 130,376,114,153.82 - Step 5: Solve for x
x = 130,376,114,153.82/311,230.26 - Step 6: Final answer
x = 418,905.65
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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.