Finding the Fourth Proportional to 220,258.88, 330,439.26 and 78,096.62
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Solution
The fourth proportional to 220,258.88, 330,439.26 and 78,096.62 is: 117,162.99
Step by Step Solution
- Step 1: Write the proportion equation
220,258.88 : 330,439.26 = 78,096.62 : x - Step 2: Convert to fraction form
220,258.88/330,439.26 = 78,096.62/x - Step 3: Cross multiply
220,258.88x = 330,439.26 × 78,096.62 - Step 4: Simplify right side
220,258.88x = 25,806,189,321.30 - Step 5: Solve for x
x = 25,806,189,321.30/220,258.88 - Step 6: Final answer
x = 117,162.99
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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.