Finding the Fourth Proportional to 220,724.74, 304,594.41 and 128,861.62
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Solution
The fourth proportional to 220,724.74, 304,594.41 and 128,861.62 is: 177,825.69
Step by Step Solution
- Step 1: Write the proportion equation
220,724.74 : 304,594.41 = 128,861.62 : x - Step 2: Convert to fraction form
220,724.74/304,594.41 = 128,861.62/x - Step 3: Cross multiply
220,724.74x = 304,594.41 × 128,861.62 - Step 4: Simplify right side
220,724.74x = 39,250,529,115.54 - Step 5: Solve for x
x = 39,250,529,115.54/220,724.74 - Step 6: Final answer
x = 177,825.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.