Finding the Fourth Proportional to 245,976.18, 339,471.26 and 143,995.44
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Solution
The fourth proportional to 245,976.18, 339,471.26 and 143,995.44 is: 198,727.83
Step by Step Solution
- Step 1: Write the proportion equation
245,976.18 : 339,471.26 = 143,995.44 : x - Step 2: Convert to fraction form
245,976.18/339,471.26 = 143,995.44/x - Step 3: Cross multiply
245,976.18x = 339,471.26 × 143,995.44 - Step 4: Simplify right side
245,976.18x = 48,882,313,451.05 - Step 5: Solve for x
x = 48,882,313,451.05/245,976.18 - Step 6: Final answer
x = 198,727.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.