Finding the Fourth Proportional to 201,819.75, 278,511.33 and 116,986.02
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Solution
The fourth proportional to 201,819.75, 278,511.33 and 116,986.02 is: 161,440.75
Step by Step Solution
- Step 1: Write the proportion equation
201,819.75 : 278,511.33 = 116,986.02 : x - Step 2: Convert to fraction form
201,819.75/278,511.33 = 116,986.02/x - Step 3: Cross multiply
201,819.75x = 278,511.33 × 116,986.02 - Step 4: Simplify right side
201,819.75x = 32,581,932,021.61 - Step 5: Solve for x
x = 32,581,932,021.61/201,819.75 - Step 6: Final answer
x = 161,440.75
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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.