Finding the Fourth Proportional to 308,114.88, 461,974.42 and 128,324.94
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Solution
The fourth proportional to 308,114.88, 461,974.42 and 128,324.94 is: 192,404.99
Step by Step Solution
- Step 1: Write the proportion equation
308,114.88 : 461,974.42 = 128,324.94 : x - Step 2: Convert to fraction form
308,114.88/461,974.42 = 128,324.94/x - Step 3: Cross multiply
308,114.88x = 461,974.42 × 128,324.94 - Step 4: Simplify right side
308,114.88x = 59,282,839,728.03 - Step 5: Solve for x
x = 59,282,839,728.03/308,114.88 - Step 6: Final answer
x = 192,404.99
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1.5x scale
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.