Finding the Fourth Proportional to 206,733.74, 309,903.77 and 66,393.95
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Solution
The fourth proportional to 206,733.74, 309,903.77 and 66,393.95 is: 99,527.70
Step by Step Solution
- Step 1: Write the proportion equation
206,733.74 : 309,903.77 = 66,393.95 : x - Step 2: Convert to fraction form
206,733.74/309,903.77 = 66,393.95/x - Step 3: Cross multiply
206,733.74x = 309,903.77 × 66,393.95 - Step 4: Simplify right side
206,733.74x = 20,575,733,528.70 - Step 5: Solve for x
x = 20,575,733,528.70/206,733.74 - Step 6: Final answer
x = 99,527.70
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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.