Finding the Fourth Proportional to 385,872.09, 578,873.23 and 133,084.96
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Solution
The fourth proportional to 385,872.09, 578,873.23 and 133,084.96 is: 199,649.89
Step by Step Solution
- Step 1: Write the proportion equation
385,872.09 : 578,873.23 = 133,084.96 : x - Step 2: Convert to fraction form
385,872.09/578,873.23 = 133,084.96/x - Step 3: Cross multiply
385,872.09x = 578,873.23 × 133,084.96 - Step 4: Simplify right side
385,872.09x = 77,039,318,879.73 - Step 5: Solve for x
x = 77,039,318,879.73/385,872.09 - Step 6: Final answer
x = 199,649.89
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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.