Finding the Fourth Proportional to 211,383.38, 317,107.86 and 71,131.06
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Solution
The fourth proportional to 211,383.38, 317,107.86 and 71,131.06 is: 106,707.62
Step by Step Solution
- Step 1: Write the proportion equation
211,383.38 : 317,107.86 = 71,131.06 : x - Step 2: Convert to fraction form
211,383.38/317,107.86 = 71,131.06/x - Step 3: Cross multiply
211,383.38x = 317,107.86 × 71,131.06 - Step 4: Simplify right side
211,383.38x = 22,556,218,216.13 - Step 5: Solve for x
x = 22,556,218,216.13/211,383.38 - Step 6: Final answer
x = 106,707.62
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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.