Finding the Fourth Proportional to 220,221.21, 303,905.58 and 119,619.21
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Solution
The fourth proportional to 220,221.21, 303,905.58 and 119,619.21 is: 165,074.68
Step by Step Solution
- Step 1: Write the proportion equation
220,221.21 : 303,905.58 = 119,619.21 : x - Step 2: Convert to fraction form
220,221.21/303,905.58 = 119,619.21/x - Step 3: Cross multiply
220,221.21x = 303,905.58 × 119,619.21 - Step 4: Simplify right side
220,221.21x = 36,352,945,394.19 - Step 5: Solve for x
x = 36,352,945,394.19/220,221.21 - Step 6: Final answer
x = 165,074.68
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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.