Finding the Fourth Proportional to 311,205.40, 466,808.10 and 306,539.80
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Solution
The fourth proportional to 311,205.40, 466,808.10 and 306,539.80 is: 459,809.70
Step by Step Solution
- Step 1: Write the proportion equation
311,205.40 : 466,808.10 = 306,539.80 : x - Step 2: Convert to fraction form
311,205.40/466,808.10 = 306,539.80/x - Step 3: Cross multiply
311,205.40x = 466,808.10 × 306,539.80 - Step 4: Simplify right side
311,205.40x = 143,095,261,612.38 - Step 5: Solve for x
x = 143,095,261,612.38/311,205.40 - Step 6: Final answer
x = 459,809.70
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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.