Finding the Fourth Proportional to 263,721.44, 395,606.48 and 86,229.36
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Solution
The fourth proportional to 263,721.44, 395,606.48 and 86,229.36 is: 129,351.99
Step by Step Solution
- Step 1: Write the proportion equation
263,721.44 : 395,606.48 = 86,229.36 : x - Step 2: Convert to fraction form
263,721.44/395,606.48 = 86,229.36/x - Step 3: Cross multiply
263,721.44x = 395,606.48 × 86,229.36 - Step 4: Simplify right side
263,721.44x = 34,112,893,582.25 - Step 5: Solve for x
x = 34,112,893,582.25/263,721.44 - Step 6: Final answer
x = 129,351.99
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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.