Finding the Fourth Proportional to 208,855.08, 288,220.28 and 113,361.75
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Solution
The fourth proportional to 208,855.08, 288,220.28 and 113,361.75 is: 156,439.36
Step by Step Solution
- Step 1: Write the proportion equation
208,855.08 : 288,220.28 = 113,361.75 : x - Step 2: Convert to fraction form
208,855.08/288,220.28 = 113,361.75/x - Step 3: Cross multiply
208,855.08x = 288,220.28 × 113,361.75 - Step 4: Simplify right side
208,855.08x = 32,673,154,759.48 - Step 5: Solve for x
x = 32,673,154,759.48/208,855.08 - Step 6: Final answer
x = 156,439.36
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1.5x scale
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.