Finding the Fourth Proportional to 206,379.64, 284,682.93 and 129,777.26
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Solution
The fourth proportional to 206,379.64, 284,682.93 and 129,777.26 is: 179,016.55
Step by Step Solution
- Step 1: Write the proportion equation
206,379.64 : 284,682.93 = 129,777.26 : x - Step 2: Convert to fraction form
206,379.64/284,682.93 = 129,777.26/x - Step 3: Cross multiply
206,379.64x = 284,682.93 × 129,777.26 - Step 4: Simplify right side
206,379.64x = 36,945,370,624.17 - Step 5: Solve for x
x = 36,945,370,624.17/206,379.64 - Step 6: Final answer
x = 179,016.55
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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.