Finding the Fourth Proportional to 213,447.13, 320,350.31 and 106,799.09
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Solution
The fourth proportional to 213,447.13, 320,350.31 and 106,799.09 is: 160,288.50
Step by Step Solution
- Step 1: Write the proportion equation
213,447.13 : 320,350.31 = 106,799.09 : x - Step 2: Convert to fraction form
213,447.13/320,350.31 = 106,799.09/x - Step 3: Cross multiply
213,447.13x = 320,350.31 × 106,799.09 - Step 4: Simplify right side
213,447.13x = 34,213,119,853.97 - Step 5: Solve for x
x = 34,213,119,853.97/213,447.13 - Step 6: Final answer
x = 160,288.50
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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.