Finding the Fourth Proportional to 222,451.74, 306,987.03 and 121,843.26
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Solution
The fourth proportional to 222,451.74, 306,987.03 and 121,843.26 is: 168,145.69
Step by Step Solution
- Step 1: Write the proportion equation
222,451.74 : 306,987.03 = 121,843.26 : x - Step 2: Convert to fraction form
222,451.74/306,987.03 = 121,843.26/x - Step 3: Cross multiply
222,451.74x = 306,987.03 × 121,843.26 - Step 4: Simplify right side
222,451.74x = 37,404,300,512.92 - Step 5: Solve for x
x = 37,404,300,512.92/222,451.74 - Step 6: Final answer
x = 168,145.69
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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.