Finding the Fourth Proportional to 312,906.24, 431,882.08 and 183,859.88
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Solution
The fourth proportional to 312,906.24, 431,882.08 and 183,859.88 is: 253,768.62
Step by Step Solution
- Step 1: Write the proportion equation
312,906.24 : 431,882.08 = 183,859.88 : x - Step 2: Convert to fraction form
312,906.24/431,882.08 = 183,859.88/x - Step 3: Cross multiply
312,906.24x = 431,882.08 × 183,859.88 - Step 4: Simplify right side
312,906.24x = 79,405,784,783.89 - Step 5: Solve for x
x = 79,405,784,783.89/312,906.24 - Step 6: Final answer
x = 253,768.62
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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.