Finding the Fourth Proportional to 214,506.92, 321,716.70 and 81,341.48
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Solution
The fourth proportional to 214,506.92, 321,716.70 and 81,341.48 is: 121,995.66
Step by Step Solution
- Step 1: Write the proportion equation
214,506.92 : 321,716.70 = 81,341.48 : x - Step 2: Convert to fraction form
214,506.92/321,716.70 = 81,341.48/x - Step 3: Cross multiply
214,506.92x = 321,716.70 × 81,341.48 - Step 4: Simplify right side
214,506.92x = 26,168,912,518.72 - Step 5: Solve for x
x = 26,168,912,518.72/214,506.92 - Step 6: Final answer
x = 121,995.66
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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.