Finding the Fourth Proportional to 355,703.30, 490,866.97 and 194,561.49
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Solution
The fourth proportional to 355,703.30, 490,866.97 and 194,561.49 is: 268,492.90
Step by Step Solution
- Step 1: Write the proportion equation
355,703.30 : 490,866.97 = 194,561.49 : x - Step 2: Convert to fraction form
355,703.30/490,866.97 = 194,561.49/x - Step 3: Cross multiply
355,703.30x = 490,866.97 × 194,561.49 - Step 4: Simplify right side
355,703.30x = 95,503,809,074.99 - Step 5: Solve for x
x = 95,503,809,074.99/355,703.30 - Step 6: Final answer
x = 268,492.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.