Finding the Fourth Proportional to 203,522.19, 305,221.10 and 140,745.75
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Solution
The fourth proportional to 203,522.19, 305,221.10 and 140,745.75 is: 211,075.62
Step by Step Solution
- Step 1: Write the proportion equation
203,522.19 : 305,221.10 = 140,745.75 : x - Step 2: Convert to fraction form
203,522.19/305,221.10 = 140,745.75/x - Step 3: Cross multiply
203,522.19x = 305,221.10 × 140,745.75 - Step 4: Simplify right side
203,522.19x = 42,958,571,931.60 - Step 5: Solve for x
x = 42,958,571,931.60/203,522.19 - Step 6: Final answer
x = 211,075.62
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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.