Finding the Fourth Proportional to 226,716.53, 312,871.43 and 129,918.47
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Solution
The fourth proportional to 226,716.53, 312,871.43 and 129,918.47 is: 179,288.99
Step by Step Solution
- Step 1: Write the proportion equation
226,716.53 : 312,871.43 = 129,918.47 : x - Step 2: Convert to fraction form
226,716.53/312,871.43 = 129,918.47/x - Step 3: Cross multiply
226,716.53x = 312,871.43 × 129,918.47 - Step 4: Simplify right side
226,716.53x = 40,647,776,252.75 - Step 5: Solve for x
x = 40,647,776,252.75/226,716.53 - Step 6: Final answer
x = 179,288.99
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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.