Finding the Fourth Proportional to 414,213.82, 621,322.35 and 126,028.31
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Solution
The fourth proportional to 414,213.82, 621,322.35 and 126,028.31 is: 189,042.96
Step by Step Solution
- Step 1: Write the proportion equation
414,213.82 : 621,322.35 = 126,028.31 : x - Step 2: Convert to fraction form
414,213.82/621,322.35 = 126,028.31/x - Step 3: Cross multiply
414,213.82x = 621,322.35 × 126,028.31 - Step 4: Simplify right side
414,213.82x = 78,304,205,735.73 - Step 5: Solve for x
x = 78,304,205,735.73/414,213.82 - Step 6: Final answer
x = 189,042.96
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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.