Finding the Fourth Proportional to 355,357.09, 490,391.95 and 194,213.29
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Solution
The fourth proportional to 355,357.09, 490,391.95 and 194,213.29 is: 268,013.88
Step by Step Solution
- Step 1: Write the proportion equation
355,357.09 : 490,391.95 = 194,213.29 : x - Step 2: Convert to fraction form
355,357.09/490,391.95 = 194,213.29/x - Step 3: Cross multiply
355,357.09x = 490,391.95 × 194,213.29 - Step 4: Simplify right side
355,357.09x = 95,240,633,294.61 - Step 5: Solve for x
x = 95,240,633,294.61/355,357.09 - Step 6: Final answer
x = 268,013.88
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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.