Finding the Fourth Proportional to 222,363.82, 306,859.92 and 120,386.68
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Solution
The fourth proportional to 222,363.82, 306,859.92 and 120,386.68 is: 166,132.45
Step by Step Solution
- Step 1: Write the proportion equation
222,363.82 : 306,859.92 = 120,386.68 : x - Step 2: Convert to fraction form
222,363.82/306,859.92 = 120,386.68/x - Step 3: Cross multiply
222,363.82x = 306,859.92 × 120,386.68 - Step 4: Simplify right side
222,363.82x = 36,941,846,993.87 - Step 5: Solve for x
x = 36,941,846,993.87/222,363.82 - Step 6: Final answer
x = 166,132.45
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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.