Finding the Fourth Proportional to 222,998.19, 307,842.21 and 149,535.66
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Solution
The fourth proportional to 222,998.19, 307,842.21 and 149,535.66 is: 206,429.42
Step by Step Solution
- Step 1: Write the proportion equation
222,998.19 : 307,842.21 = 149,535.66 : x - Step 2: Convert to fraction form
222,998.19/307,842.21 = 149,535.66/x - Step 3: Cross multiply
222,998.19x = 307,842.21 × 149,535.66 - Step 4: Simplify right side
222,998.19x = 46,033,388,048.21 - Step 5: Solve for x
x = 46,033,388,048.21/222,998.19 - Step 6: Final answer
x = 206,429.42
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1.5x scale
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.