Finding the Fourth Proportional to 190,879.24, 286,255.28 and 76,997.63
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Solution
The fourth proportional to 190,879.24, 286,255.28 and 76,997.63 is: 115,470.79
Step by Step Solution
- Step 1: Write the proportion equation
190,879.24 : 286,255.28 = 76,997.63 : x - Step 2: Convert to fraction form
190,879.24/286,255.28 = 76,997.63/x - Step 3: Cross multiply
190,879.24x = 286,255.28 × 76,997.63 - Step 4: Simplify right side
190,879.24x = 22,040,976,896.20 - Step 5: Solve for x
x = 22,040,976,896.20/190,879.24 - Step 6: Final answer
x = 115,470.79
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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.