Finding the Fourth Proportional to 214,059.90, 320,859.45 and 80,888.70
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Solution
The fourth proportional to 214,059.90, 320,859.45 and 80,888.70 is: 121,245.99
Step by Step Solution
- Step 1: Write the proportion equation
214,059.90 : 320,859.45 = 80,888.70 : x - Step 2: Convert to fraction form
214,059.90/320,859.45 = 80,888.70/x - Step 3: Cross multiply
214,059.90x = 320,859.45 × 80,888.70 - Step 4: Simplify right side
214,059.90x = 25,953,903,793.22 - Step 5: Solve for x
x = 25,953,903,793.22/214,059.90 - Step 6: Final answer
x = 121,245.99
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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.