Finding the Fourth Proportional to 211,816.08, 317,529.36 and 91,797.75
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Solution
The fourth proportional to 211,816.08, 317,529.36 and 91,797.75 is: 137,612.22
Step by Step Solution
- Step 1: Write the proportion equation
211,816.08 : 317,529.36 = 91,797.75 : x - Step 2: Convert to fraction form
211,816.08/317,529.36 = 91,797.75/x - Step 3: Cross multiply
211,816.08x = 317,529.36 × 91,797.75 - Step 4: Simplify right side
211,816.08x = 29,148,480,806.94 - Step 5: Solve for x
x = 29,148,480,806.94/211,816.08 - Step 6: Final answer
x = 137,612.22
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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.