Finding the Fourth Proportional to 347,679.99, 479,716.14 and 196,776.99
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Solution
The fourth proportional to 347,679.99, 479,716.14 and 196,776.99 is: 271,505.70
Step by Step Solution
- Step 1: Write the proportion equation
347,679.99 : 479,716.14 = 196,776.99 : x - Step 2: Convert to fraction form
347,679.99/479,716.14 = 196,776.99/x - Step 3: Cross multiply
347,679.99x = 479,716.14 × 196,776.99 - Step 4: Simplify right side
347,679.99x = 94,397,098,083.62 - Step 5: Solve for x
x = 94,397,098,083.62/347,679.99 - Step 6: Final answer
x = 271,505.70
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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.