Finding the Fourth Proportional to 252,629.21, 378,615.61 and 102,694.87
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Solution
The fourth proportional to 252,629.21, 378,615.61 and 102,694.87 is: 153,908.88
Step by Step Solution
- Step 1: Write the proportion equation
252,629.21 : 378,615.61 = 102,694.87 : x - Step 2: Convert to fraction form
252,629.21/378,615.61 = 102,694.87/x - Step 3: Cross multiply
252,629.21x = 378,615.61 × 102,694.87 - Step 4: Simplify right side
252,629.21x = 38,881,879,645.64 - Step 5: Solve for x
x = 38,881,879,645.64/252,629.21 - Step 6: Final answer
x = 153,908.88
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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.