Finding the Fourth Proportional to 386,716.44, 579,388.02 and 161,581.26
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Solution
The fourth proportional to 386,716.44, 579,388.02 and 161,581.26 is: 242,084.99
Step by Step Solution
- Step 1: Write the proportion equation
386,716.44 : 579,388.02 = 161,581.26 : x - Step 2: Convert to fraction form
386,716.44/579,388.02 = 161,581.26/x - Step 3: Cross multiply
386,716.44x = 579,388.02 × 161,581.26 - Step 4: Simplify right side
386,716.44x = 93,618,246,300.51 - Step 5: Solve for x
x = 93,618,246,300.51/386,716.44 - Step 6: Final answer
x = 242,084.99
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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.