Finding the Fourth Proportional to 203,492.80, 305,028.60 and 91,226.80
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Solution
The fourth proportional to 203,492.80, 305,028.60 and 91,226.80 is: 136,745.79
Step by Step Solution
- Step 1: Write the proportion equation
203,492.80 : 305,028.60 = 91,226.80 : x - Step 2: Convert to fraction form
203,492.80/305,028.60 = 91,226.80/x - Step 3: Cross multiply
203,492.80x = 305,028.60 × 91,226.80 - Step 4: Simplify right side
203,492.80x = 27,826,783,086.48 - Step 5: Solve for x
x = 27,826,783,086.48/203,492.80 - Step 6: Final answer
x = 136,745.79
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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.