Finding the Fourth Proportional to 205,976.26, 308,814.68 and 86,067.54
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Solution
The fourth proportional to 205,976.26, 308,814.68 and 86,067.54 is: 129,038.75
Step by Step Solution
- Step 1: Write the proportion equation
205,976.26 : 308,814.68 = 86,067.54 : x - Step 2: Convert to fraction form
205,976.26/308,814.68 = 86,067.54/x - Step 3: Cross multiply
205,976.26x = 308,814.68 × 86,067.54 - Step 4: Simplify right side
205,976.26x = 26,578,918,279.41 - Step 5: Solve for x
x = 26,578,918,279.41/205,976.26 - Step 6: Final answer
x = 129,038.75
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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.