Finding the Fourth Proportional to 256,881.12, 354,512.34 and 143,704.68
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Solution
The fourth proportional to 256,881.12, 354,512.34 and 143,704.68 is: 198,321.63
Step by Step Solution
- Step 1: Write the proportion equation
256,881.12 : 354,512.34 = 143,704.68 : x - Step 2: Convert to fraction form
256,881.12/354,512.34 = 143,704.68/x - Step 3: Cross multiply
256,881.12x = 354,512.34 × 143,704.68 - Step 4: Simplify right side
256,881.12x = 50,945,082,375.75 - Step 5: Solve for x
x = 50,945,082,375.75/256,881.12 - Step 6: Final answer
x = 198,321.63
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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.