Finding the Fourth Proportional to 168,759.20, 253,138.80 and 159,573.80
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Solution
The fourth proportional to 168,759.20, 253,138.80 and 159,573.80 is: 239,360.70
Step by Step Solution
- Step 1: Write the proportion equation
168,759.20 : 253,138.80 = 159,573.80 : x - Step 2: Convert to fraction form
168,759.20/253,138.80 = 159,573.80/x - Step 3: Cross multiply
168,759.20x = 253,138.80 × 159,573.80 - Step 4: Simplify right side
168,759.20x = 40,394,320,243.44 - Step 5: Solve for x
x = 40,394,320,243.44/168,759.20 - Step 6: Final answer
x = 239,360.70
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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.