Finding the Fourth Proportional to 205,119.80, 307,809.30 and 120,879.80
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Solution
The fourth proportional to 205,119.80, 307,809.30 and 120,879.80 is: 181,396.07
Step by Step Solution
- Step 1: Write the proportion equation
205,119.80 : 307,809.30 = 120,879.80 : x - Step 2: Convert to fraction form
205,119.80/307,809.30 = 120,879.80/x - Step 3: Cross multiply
205,119.80x = 307,809.30 × 120,879.80 - Step 4: Simplify right side
205,119.80x = 37,207,926,622.14 - Step 5: Solve for x
x = 37,207,926,622.14/205,119.80 - Step 6: Final answer
x = 181,396.07
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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.