Finding the Fourth Proportional to 259,738.36, 389,622.36 and 72,764.44
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Solution
The fourth proportional to 259,738.36, 389,622.36 and 72,764.44 is: 109,150.81
Step by Step Solution
- Step 1: Write the proportion equation
259,738.36 : 389,622.36 = 72,764.44 : x - Step 2: Convert to fraction form
259,738.36/389,622.36 = 72,764.44/x - Step 3: Cross multiply
259,738.36x = 389,622.36 × 72,764.44 - Step 4: Simplify right side
259,738.36x = 28,350,652,836.88 - Step 5: Solve for x
x = 28,350,652,836.88/259,738.36 - Step 6: Final answer
x = 109,150.81
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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.