Finding the Fourth Proportional to 289,515.12, 399,546.80 and 160,450.91
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Solution
The fourth proportional to 289,515.12, 399,546.80 and 160,450.91 is: 221,431.09
Step by Step Solution
- Step 1: Write the proportion equation
289,515.12 : 399,546.80 = 160,450.91 : x - Step 2: Convert to fraction form
289,515.12/399,546.80 = 160,450.91/x - Step 3: Cross multiply
289,515.12x = 399,546.80 × 160,450.91 - Step 4: Simplify right side
289,515.12x = 64,107,647,647.59 - Step 5: Solve for x
x = 64,107,647,647.59/289,515.12 - Step 6: Final answer
x = 221,431.09
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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.