Finding the Fourth Proportional to 347,538.24, 479,491.25 and 194,553.90
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Solution
The fourth proportional to 347,538.24, 479,491.25 and 194,553.90 is: 268,421.95
Step by Step Solution
- Step 1: Write the proportion equation
347,538.24 : 479,491.25 = 194,553.90 : x - Step 2: Convert to fraction form
347,538.24/479,491.25 = 194,553.90/x - Step 3: Cross multiply
347,538.24x = 479,491.25 × 194,553.90 - Step 4: Simplify right side
347,538.24x = 93,286,891,730.61 - Step 5: Solve for x
x = 93,286,891,730.61/347,538.24 - Step 6: Final answer
x = 268,421.95
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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.