Finding the Fourth Proportional to 299,471.40, 449,207.10 and 276,661.80
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Solution
The fourth proportional to 299,471.40, 449,207.10 and 276,661.80 is: 414,992.70
Step by Step Solution
- Step 1: Write the proportion equation
299,471.40 : 449,207.10 = 276,661.80 : x - Step 2: Convert to fraction form
299,471.40/449,207.10 = 276,661.80/x - Step 3: Cross multiply
299,471.40x = 449,207.10 × 276,661.80 - Step 4: Simplify right side
299,471.40x = 124,278,444,858.78 - Step 5: Solve for x
x = 124,278,444,858.78/299,471.40 - Step 6: Final answer
x = 414,992.70
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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.