Finding the Fourth Proportional to 253,129.80, 379,694.70 and 253,129.80
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Solution
The fourth proportional to 253,129.80, 379,694.70 and 253,129.80 is: 379,694.70
Step by Step Solution
- Step 1: Write the proportion equation
253,129.80 : 379,694.70 = 253,129.80 : x - Step 2: Convert to fraction form
253,129.80/379,694.70 = 253,129.80/x - Step 3: Cross multiply
253,129.80x = 379,694.70 × 253,129.80 - Step 4: Simplify right side
253,129.80x = 96,112,043,472.06 - Step 5: Solve for x
x = 96,112,043,472.06/253,129.80 - Step 6: Final answer
x = 379,694.70
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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.