Finding the Fourth Proportional to 203,757.67, 305,688.09 and 143,903.07
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Solution
The fourth proportional to 203,757.67, 305,688.09 and 143,903.07 is: 215,891.04
Step by Step Solution
- Step 1: Write the proportion equation
203,757.67 : 305,688.09 = 143,903.07 : x - Step 2: Convert to fraction form
203,757.67/305,688.09 = 143,903.07/x - Step 3: Cross multiply
203,757.67x = 305,688.09 × 143,903.07 - Step 4: Simplify right side
203,757.67x = 43,989,454,613.44 - Step 5: Solve for x
x = 43,989,454,613.44/203,757.67 - Step 6: Final answer
x = 215,891.04
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1.5x scale
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.