Finding the Fourth Proportional to 203,903.80, 305,855.70 and 151,415.80
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Solution
The fourth proportional to 203,903.80, 305,855.70 and 151,415.80 is: 227,123.70
Step by Step Solution
- Step 1: Write the proportion equation
203,903.80 : 305,855.70 = 151,415.80 : x - Step 2: Convert to fraction form
203,903.80/305,855.70 = 151,415.80/x - Step 3: Cross multiply
203,903.80x = 305,855.70 × 151,415.80 - Step 4: Simplify right side
203,903.80x = 46,311,385,500.06 - Step 5: Solve for x
x = 46,311,385,500.06/203,903.80 - Step 6: Final answer
x = 227,123.70
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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.