Finding the Fourth Proportional to 421,888.43, 582,207.56 and 228,296.12
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Solution
The fourth proportional to 421,888.43, 582,207.56 and 228,296.12 is: 315,049.48
Step by Step Solution
- Step 1: Write the proportion equation
421,888.43 : 582,207.56 = 228,296.12 : x - Step 2: Convert to fraction form
421,888.43/582,207.56 = 228,296.12/x - Step 3: Cross multiply
421,888.43x = 582,207.56 × 228,296.12 - Step 4: Simplify right side
421,888.43x = 132,915,729,008.93 - Step 5: Solve for x
x = 132,915,729,008.93/421,888.43 - Step 6: Final answer
x = 315,049.48
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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.