Finding the Fourth Proportional to 206,786.70, 310,234.05 and 66,548.70
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Solution
The fourth proportional to 206,786.70, 310,234.05 and 66,548.70 is: 99,840.43
Step by Step Solution
- Step 1: Write the proportion equation
206,786.70 : 310,234.05 = 66,548.70 : x - Step 2: Convert to fraction form
206,786.70/310,234.05 = 66,548.70/x - Step 3: Cross multiply
206,786.70x = 310,234.05 × 66,548.70 - Step 4: Simplify right side
206,786.70x = 20,645,672,723.24 - Step 5: Solve for x
x = 20,645,672,723.24/206,786.70 - Step 6: Final answer
x = 99,840.43
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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.