Finding the Fourth Proportional to 221,503.09, 305,674.27 and 120,901.09
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Solution
The fourth proportional to 221,503.09, 305,674.27 and 120,901.09 is: 166,843.51
Step by Step Solution
- Step 1: Write the proportion equation
221,503.09 : 305,674.27 = 120,901.09 : x - Step 2: Convert to fraction form
221,503.09/305,674.27 = 120,901.09/x - Step 3: Cross multiply
221,503.09x = 305,674.27 × 120,901.09 - Step 4: Simplify right side
221,503.09x = 36,956,352,427.95 - Step 5: Solve for x
x = 36,956,352,427.95/221,503.09 - Step 6: Final answer
x = 166,843.51
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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.