Finding the Fourth Proportional to 207,942.63, 286,961.49 and 112,449.99
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Solution
The fourth proportional to 207,942.63, 286,961.49 and 112,449.99 is: 155,181.34
Step by Step Solution
- Step 1: Write the proportion equation
207,942.63 : 286,961.49 = 112,449.99 : x - Step 2: Convert to fraction form
207,942.63/286,961.49 = 112,449.99/x - Step 3: Cross multiply
207,942.63x = 286,961.49 × 112,449.99 - Step 4: Simplify right side
207,942.63x = 32,268,816,680.89 - Step 5: Solve for x
x = 32,268,816,680.89/207,942.63 - Step 6: Final answer
x = 155,181.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.