Finding the Fourth Proportional to 207,368.20, 311,380.36 and 157,504.60
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Solution
The fourth proportional to 207,368.20, 311,380.36 and 157,504.60 is: 236,506.07
Step by Step Solution
- Step 1: Write the proportion equation
207,368.20 : 311,380.36 = 157,504.60 : x - Step 2: Convert to fraction form
207,368.20/311,380.36 = 157,504.60/x - Step 3: Cross multiply
207,368.20x = 311,380.36 × 157,504.60 - Step 4: Simplify right side
207,368.20x = 49,043,839,049.66 - Step 5: Solve for x
x = 49,043,839,049.66/207,368.20 - Step 6: Final answer
x = 236,506.07
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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.