Finding the Fourth Proportional to 428,892.96, 642,921.18 and 204,192.99
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Solution
The fourth proportional to 428,892.96, 642,921.18 and 204,192.99 is: 306,090.35
Step by Step Solution
- Step 1: Write the proportion equation
428,892.96 : 642,921.18 = 204,192.99 : x - Step 2: Convert to fraction form
428,892.96/642,921.18 = 204,192.99/x - Step 3: Cross multiply
428,892.96x = 642,921.18 × 204,192.99 - Step 4: Simplify right side
428,892.96x = 131,279,998,078.53 - Step 5: Solve for x
x = 131,279,998,078.53/428,892.96 - Step 6: Final answer
x = 306,090.35
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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.