Finding the Fourth Proportional to 211,187.99, 291,446.84 and 115,694.68
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Solution
The fourth proportional to 211,187.99, 291,446.84 and 115,694.68 is: 159,662.72
Step by Step Solution
- Step 1: Write the proportion equation
211,187.99 : 291,446.84 = 115,694.68 : x - Step 2: Convert to fraction form
211,187.99/291,446.84 = 115,694.68/x - Step 3: Cross multiply
211,187.99x = 291,446.84 × 115,694.68 - Step 4: Simplify right side
211,187.99x = 33,718,848,451.43 - Step 5: Solve for x
x = 33,718,848,451.43/211,187.99 - Step 6: Final answer
x = 159,662.72
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1.5x scale
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.