Finding the Fourth Proportional to 222,113.36, 306,516.12 and 121,511.36
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Solution
The fourth proportional to 222,113.36, 306,516.12 and 121,511.36 is: 167,685.50
Step by Step Solution
- Step 1: Write the proportion equation
222,113.36 : 306,516.12 = 121,511.36 : x - Step 2: Convert to fraction form
222,113.36/306,516.12 = 121,511.36/x - Step 3: Cross multiply
222,113.36x = 306,516.12 × 121,511.36 - Step 4: Simplify right side
222,113.36x = 37,245,190,603.12 - Step 5: Solve for x
x = 37,245,190,603.12/222,113.36 - Step 6: Final answer
x = 167,685.50
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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.