Finding the Fourth Proportional to 251,863.60, 378,232.80 and 133,765.60
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Solution
The fourth proportional to 251,863.60, 378,232.80 and 133,765.60 is: 200,880.70
Step by Step Solution
- Step 1: Write the proportion equation
251,863.60 : 378,232.80 = 133,765.60 : x - Step 2: Convert to fraction form
251,863.60/378,232.80 = 133,765.60/x - Step 3: Cross multiply
251,863.60x = 378,232.80 × 133,765.60 - Step 4: Simplify right side
251,863.60x = 50,594,537,431.68 - Step 5: Solve for x
x = 50,594,537,431.68/251,863.60 - Step 6: Final answer
x = 200,880.70
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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.