Finding the Fourth Proportional to 222,378.16, 306,881.44 and 120,403.71
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Solution
The fourth proportional to 222,378.16, 306,881.44 and 120,403.71 is: 166,156.90
Step by Step Solution
- Step 1: Write the proportion equation
222,378.16 : 306,881.44 = 120,403.71 : x - Step 2: Convert to fraction form
222,378.16/306,881.44 = 120,403.71/x - Step 3: Cross multiply
222,378.16x = 306,881.44 × 120,403.71 - Step 4: Simplify right side
222,378.16x = 36,949,663,906.14 - Step 5: Solve for x
x = 36,949,663,906.14/222,378.16 - Step 6: Final answer
x = 166,156.90
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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.