Finding the Fourth Proportional to 218,481.12, 327,750.84 and 76,355.28
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Solution
The fourth proportional to 218,481.12, 327,750.84 and 76,355.28 is: 114,543.11
Step by Step Solution
- Step 1: Write the proportion equation
218,481.12 : 327,750.84 = 76,355.28 : x - Step 2: Convert to fraction form
218,481.12/327,750.84 = 76,355.28/x - Step 3: Cross multiply
218,481.12x = 327,750.84 × 76,355.28 - Step 4: Simplify right side
218,481.12x = 25,025,507,158.44 - Step 5: Solve for x
x = 25,025,507,158.44/218,481.12 - Step 6: Final answer
x = 114,543.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.