Finding the Fourth Proportional to 214,534.26, 321,676.79 and 81,341.87
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Solution
The fourth proportional to 214,534.26, 321,676.79 and 81,341.87 is: 121,965.55
Step by Step Solution
- Step 1: Write the proportion equation
214,534.26 : 321,676.79 = 81,341.87 : x - Step 2: Convert to fraction form
214,534.26/321,676.79 = 81,341.87/x - Step 3: Cross multiply
214,534.26x = 321,676.79 × 81,341.87 - Step 4: Simplify right side
214,534.26x = 26,165,789,619.10 - Step 5: Solve for x
x = 26,165,789,619.10/214,534.26 - Step 6: Final answer
x = 121,965.55
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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.