Finding the Fourth Proportional to 208,517.80, 313,007.10 and 115,205.80
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Solution
The fourth proportional to 208,517.80, 313,007.10 and 115,205.80 is: 172,936.00
Step by Step Solution
- Step 1: Write the proportion equation
208,517.80 : 313,007.10 = 115,205.80 : x - Step 2: Convert to fraction form
208,517.80/313,007.10 = 115,205.80/x - Step 3: Cross multiply
208,517.80x = 313,007.10 × 115,205.80 - Step 4: Simplify right side
208,517.80x = 36,060,233,361.18 - Step 5: Solve for x
x = 36,060,233,361.18/208,517.80 - Step 6: Final answer
x = 172,936.00
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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.