Finding the Fourth Proportional to 213,812.70, 320,795.85 and 206,132.70
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Solution
The fourth proportional to 213,812.70, 320,795.85 and 206,132.70 is: 309,273.09
Step by Step Solution
- Step 1: Write the proportion equation
213,812.70 : 320,795.85 = 206,132.70 : x - Step 2: Convert to fraction form
213,812.70/320,795.85 = 206,132.70/x - Step 3: Cross multiply
213,812.70x = 320,795.85 × 206,132.70 - Step 4: Simplify right side
213,812.70x = 66,126,514,709.30 - Step 5: Solve for x
x = 66,126,514,709.30/213,812.70 - Step 6: Final answer
x = 309,273.09
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1.5x scale
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.