Finding the Fourth Proportional to 205,917.38, 284,163.80 and 115,274.09
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Solution
The fourth proportional to 205,917.38, 284,163.80 and 115,274.09 is: 159,077.02
Step by Step Solution
- Step 1: Write the proportion equation
205,917.38 : 284,163.80 = 115,274.09 : x - Step 2: Convert to fraction form
205,917.38/284,163.80 = 115,274.09/x - Step 3: Cross multiply
205,917.38x = 284,163.80 × 115,274.09 - Step 4: Simplify right side
205,917.38x = 32,756,723,589.98 - Step 5: Solve for x
x = 32,756,723,589.98/205,917.38 - Step 6: Final answer
x = 159,077.02
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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.