Finding the Fourth Proportional to 221,845.82, 306,147.23 and 121,243.82
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Solution
The fourth proportional to 221,845.82, 306,147.23 and 121,243.82 is: 167,316.47
Step by Step Solution
- Step 1: Write the proportion equation
221,845.82 : 306,147.23 = 121,243.82 : x - Step 2: Convert to fraction form
221,845.82/306,147.23 = 121,243.82/x - Step 3: Cross multiply
221,845.82x = 306,147.23 × 121,243.82 - Step 4: Simplify right side
221,845.82x = 37,118,459,041.40 - Step 5: Solve for x
x = 37,118,459,041.40/221,845.82 - Step 6: Final answer
x = 167,316.47
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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.