Finding the Fourth Proportional to 207,968.28, 311,974.29 and 67,737.84
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Solution
The fourth proportional to 207,968.28, 311,974.29 and 67,737.84 is: 101,613.88
Step by Step Solution
- Step 1: Write the proportion equation
207,968.28 : 311,974.29 = 67,737.84 : x - Step 2: Convert to fraction form
207,968.28/311,974.29 = 67,737.84/x - Step 3: Cross multiply
207,968.28x = 311,974.29 × 67,737.84 - Step 4: Simplify right side
207,968.28x = 21,132,464,540.13 - Step 5: Solve for x
x = 21,132,464,540.13/207,968.28 - Step 6: Final answer
x = 101,613.88
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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.