Finding the Fourth Proportional to 282,207.36, 389,445.84 and 154,883.28
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Solution
The fourth proportional to 282,207.36, 389,445.84 and 154,883.28 is: 213,738.75
Step by Step Solution
- Step 1: Write the proportion equation
282,207.36 : 389,445.84 = 154,883.28 : x - Step 2: Convert to fraction form
282,207.36/389,445.84 = 154,883.28/x - Step 3: Cross multiply
282,207.36x = 389,445.84 × 154,883.28 - Step 4: Simplify right side
282,207.36x = 60,318,649,081.56 - Step 5: Solve for x
x = 60,318,649,081.56/282,207.36 - Step 6: Final answer
x = 213,738.75
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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.