Finding the Fourth Proportional to 308,857.18, 461,230.34 and 305,517.24
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Solution
The fourth proportional to 308,857.18, 461,230.34 and 305,517.24 is: 456,242.66
Step by Step Solution
- Step 1: Write the proportion equation
308,857.18 : 461,230.34 = 305,517.24 : x - Step 2: Convert to fraction form
308,857.18/461,230.34 = 305,517.24/x - Step 3: Cross multiply
308,857.18x = 461,230.34 × 305,517.24 - Step 4: Simplify right side
308,857.18x = 140,913,820,481.06 - Step 5: Solve for x
x = 140,913,820,481.06/308,857.18 - Step 6: Final answer
x = 456,242.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.