Finding the Fourth Proportional to 214,230.62, 321,390.99 and 81,107.93
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Solution
The fourth proportional to 214,230.62, 321,390.99 and 81,107.93 is: 121,678.96
Step by Step Solution
- Step 1: Write the proportion equation
214,230.62 : 321,390.99 = 81,107.93 : x - Step 2: Convert to fraction form
214,230.62/321,390.99 = 81,107.93/x - Step 3: Cross multiply
214,230.62x = 321,390.99 × 81,107.93 - Step 4: Simplify right side
214,230.62x = 26,067,358,723.03 - Step 5: Solve for x
x = 26,067,358,723.03/214,230.62 - Step 6: Final answer
x = 121,678.96
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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.