Finding the Fourth Proportional to 211,855.68, 317,629.68 and 99,478.08
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Solution
The fourth proportional to 211,855.68, 317,629.68 and 99,478.08 is: 149,144.88
Step by Step Solution
- Step 1: Write the proportion equation
211,855.68 : 317,629.68 = 99,478.08 : x - Step 2: Convert to fraction form
211,855.68/317,629.68 = 99,478.08/x - Step 3: Cross multiply
211,855.68x = 317,629.68 × 99,478.08 - Step 4: Simplify right side
211,855.68x = 31,597,190,717.41 - Step 5: Solve for x
x = 31,597,190,717.41/211,855.68 - Step 6: Final answer
x = 149,144.88
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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.