Finding the Fourth Proportional to 299,465.80, 449,198.70 and 149,729.20
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Solution
The fourth proportional to 299,465.80, 449,198.70 and 149,729.20 is: 224,593.80
Step by Step Solution
- Step 1: Write the proportion equation
299,465.80 : 449,198.70 = 149,729.20 : x - Step 2: Convert to fraction form
299,465.80/449,198.70 = 149,729.20/x - Step 3: Cross multiply
299,465.80x = 449,198.70 × 149,729.20 - Step 4: Simplify right side
299,465.80x = 67,258,161,992.04 - Step 5: Solve for x
x = 67,258,161,992.04/299,465.80 - Step 6: Final answer
x = 224,593.80
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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.