Finding the Fourth Proportional to 238,327.97, 328,891.46 and 129,431.54
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Solution
The fourth proportional to 238,327.97, 328,891.46 and 129,431.54 is: 178,614.90
Step by Step Solution
- Step 1: Write the proportion equation
238,327.97 : 328,891.46 = 129,431.54 : x - Step 2: Convert to fraction form
238,327.97/328,891.46 = 129,431.54/x - Step 3: Cross multiply
238,327.97x = 328,891.46 × 129,431.54 - Step 4: Simplify right side
238,327.97x = 42,568,925,869.03 - Step 5: Solve for x
x = 42,568,925,869.03/238,327.97 - Step 6: Final answer
x = 178,614.90
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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.