Finding the Fourth Proportional to 193,906.68, 290,857.86 and 75,661.08
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Solution
The fourth proportional to 193,906.68, 290,857.86 and 75,661.08 is: 113,490.78
Step by Step Solution
- Step 1: Write the proportion equation
193,906.68 : 290,857.86 = 75,661.08 : x - Step 2: Convert to fraction form
193,906.68/290,857.86 = 75,661.08/x - Step 3: Cross multiply
193,906.68x = 290,857.86 × 75,661.08 - Step 4: Simplify right side
193,906.68x = 22,006,619,814.09 - Step 5: Solve for x
x = 22,006,619,814.09/193,906.68 - Step 6: Final answer
x = 113,490.78
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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.