Finding the Fourth Proportional to 220,245.21, 330,365.99 and 130,907.07
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Solution
The fourth proportional to 220,245.21, 330,365.99 and 130,907.07 is: 196,359.52
Step by Step Solution
- Step 1: Write the proportion equation
220,245.21 : 330,365.99 = 130,907.07 : x - Step 2: Convert to fraction form
220,245.21/330,365.99 = 130,907.07/x - Step 3: Cross multiply
220,245.21x = 330,365.99 × 130,907.07 - Step 4: Simplify right side
220,245.21x = 43,247,244,105.82 - Step 5: Solve for x
x = 43,247,244,105.82/220,245.21 - Step 6: Final answer
x = 196,359.52
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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.