Finding the Fourth Proportional to 200,575.41, 276,919.92 and 129,079.68
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Solution
The fourth proportional to 200,575.41, 276,919.92 and 129,079.68 is: 178,210.95
Step by Step Solution
- Step 1: Write the proportion equation
200,575.41 : 276,919.92 = 129,079.68 : x - Step 2: Convert to fraction form
200,575.41/276,919.92 = 129,079.68/x - Step 3: Cross multiply
200,575.41x = 276,919.92 × 129,079.68 - Step 4: Simplify right side
200,575.41x = 35,744,734,659.23 - Step 5: Solve for x
x = 35,744,734,659.23/200,575.41 - Step 6: Final answer
x = 178,210.95
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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.