Finding the Fourth Proportional to 203,850.06, 305,676.18 and 85,489.62
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Solution
The fourth proportional to 203,850.06, 305,676.18 and 85,489.62 is: 128,192.95
Step by Step Solution
- Step 1: Write the proportion equation
203,850.06 : 305,676.18 = 85,489.62 : x - Step 2: Convert to fraction form
203,850.06/305,676.18 = 85,489.62/x - Step 3: Cross multiply
203,850.06x = 305,676.18 × 85,489.62 - Step 4: Simplify right side
203,850.06x = 26,132,140,471.25 - Step 5: Solve for x
x = 26,132,140,471.25/203,850.06 - Step 6: Final answer
x = 128,192.95
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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.