Finding the Fourth Proportional to 203,974.20, 305,842.50 and 79,169.40
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Solution
The fourth proportional to 203,974.20, 305,842.50 and 79,169.40 is: 118,707.99
Step by Step Solution
- Step 1: Write the proportion equation
203,974.20 : 305,842.50 = 79,169.40 : x - Step 2: Convert to fraction form
203,974.20/305,842.50 = 79,169.40/x - Step 3: Cross multiply
203,974.20x = 305,842.50 × 79,169.40 - Step 4: Simplify right side
203,974.20x = 24,213,367,219.50 - Step 5: Solve for x
x = 24,213,367,219.50/203,974.20 - Step 6: Final answer
x = 118,707.99
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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.