Finding the Fourth Proportional to 221,596.75, 305,804.33 and 120,994.75
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Solution
The fourth proportional to 221,596.75, 305,804.33 and 120,994.75 is: 166,973.20
Step by Step Solution
- Step 1: Write the proportion equation
221,596.75 : 305,804.33 = 120,994.75 : x - Step 2: Convert to fraction form
221,596.75/305,804.33 = 120,994.75/x - Step 3: Cross multiply
221,596.75x = 305,804.33 × 120,994.75 - Step 4: Simplify right side
221,596.75x = 37,000,718,457.27 - Step 5: Solve for x
x = 37,000,718,457.27/221,596.75 - Step 6: Final answer
x = 166,973.20
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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.