Finding the Fourth Proportional to 300,128.88, 450,027.12 and 122,760.44
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Solution
The fourth proportional to 300,128.88, 450,027.12 and 122,760.44 is: 184,072.68
Step by Step Solution
- Step 1: Write the proportion equation
300,128.88 : 450,027.12 = 122,760.44 : x - Step 2: Convert to fraction form
300,128.88/450,027.12 = 122,760.44/x - Step 3: Cross multiply
300,128.88x = 450,027.12 × 122,760.44 - Step 4: Simplify right side
300,128.88x = 55,245,527,263.13 - Step 5: Solve for x
x = 55,245,527,263.13/300,128.88 - Step 6: Final answer
x = 184,072.68
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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.