Finding the Fourth Proportional to 393,998.53, 591,137.43 and 194,458.99
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Solution
The fourth proportional to 393,998.53, 591,137.43 and 194,458.99 is: 291,757.40
Step by Step Solution
- Step 1: Write the proportion equation
393,998.53 : 591,137.43 = 194,458.99 : x - Step 2: Convert to fraction form
393,998.53/591,137.43 = 194,458.99/x - Step 3: Cross multiply
393,998.53x = 591,137.43 × 194,458.99 - Step 4: Simplify right side
393,998.53x = 114,951,987,589.00 - Step 5: Solve for x
x = 114,951,987,589.00/393,998.53 - Step 6: Final answer
x = 291,757.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.