Finding the Fourth Proportional to 206,736.67, 309,908.14 and 66,396.88
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Solution
The fourth proportional to 206,736.67, 309,908.14 and 66,396.88 is: 99,532.09
Step by Step Solution
- Step 1: Write the proportion equation
206,736.67 : 309,908.14 = 66,396.88 : x - Step 2: Convert to fraction form
206,736.67/309,908.14 = 66,396.88/x - Step 3: Cross multiply
206,736.67x = 309,908.14 × 66,396.88 - Step 4: Simplify right side
206,736.67x = 20,576,931,701.08 - Step 5: Solve for x
x = 20,576,931,701.08/206,736.67 - Step 6: Final answer
x = 99,532.09
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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.