Finding the Fourth Proportional to 347,091.21, 478,986.92 and 194,131.99
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Solution
The fourth proportional to 347,091.21, 478,986.92 and 194,131.99 is: 267,902.73
Step by Step Solution
- Step 1: Write the proportion equation
347,091.21 : 478,986.92 = 194,131.99 : x - Step 2: Convert to fraction form
347,091.21/478,986.92 = 194,131.99/x - Step 3: Cross multiply
347,091.21x = 478,986.92 × 194,131.99 - Step 4: Simplify right side
347,091.21x = 92,986,684,319.64 - Step 5: Solve for x
x = 92,986,684,319.64/347,091.21 - Step 6: Final answer
x = 267,902.73
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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.