Finding the Fourth Proportional to 211,187.95, 291,446.66 and 115,694.62
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Solution
The fourth proportional to 211,187.95, 291,446.66 and 115,694.62 is: 159,662.57
Step by Step Solution
- Step 1: Write the proportion equation
211,187.95 : 291,446.66 = 115,694.62 : x - Step 2: Convert to fraction form
211,187.95/291,446.66 = 115,694.62/x - Step 3: Cross multiply
211,187.95x = 291,446.66 × 115,694.62 - Step 4: Simplify right side
211,187.95x = 33,718,810,578.97 - Step 5: Solve for x
x = 33,718,810,578.97/211,187.95 - Step 6: Final answer
x = 159,662.57
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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.