Finding the Fourth Proportional to 221,969.97, 306,319.74 and 121,367.97
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Solution
The fourth proportional to 221,969.97, 306,319.74 and 121,367.97 is: 167,488.44
Step by Step Solution
- Step 1: Write the proportion equation
221,969.97 : 306,319.74 = 121,367.97 : x - Step 2: Convert to fraction form
221,969.97/306,319.74 = 121,367.97/x - Step 3: Cross multiply
221,969.97x = 306,319.74 × 121,367.97 - Step 4: Simplify right side
221,969.97x = 37,177,405,014.73 - Step 5: Solve for x
x = 37,177,405,014.73/221,969.97 - Step 6: Final answer
x = 167,488.44
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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.