Finding the Fourth Proportional to 228,571.41, 342,879.68 and 78,791.99
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Solution
The fourth proportional to 228,571.41, 342,879.68 and 78,791.99 is: 118,195.75
Step by Step Solution
- Step 1: Write the proportion equation
228,571.41 : 342,879.68 = 78,791.99 : x - Step 2: Convert to fraction form
228,571.41/342,879.68 = 78,791.99/x - Step 3: Cross multiply
228,571.41x = 342,879.68 × 78,791.99 - Step 4: Simplify right side
228,571.41x = 27,016,170,209.40 - Step 5: Solve for x
x = 27,016,170,209.40/228,571.41 - Step 6: Final answer
x = 118,195.75
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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.