Finding the Fourth Proportional to 217,229.14, 299,777.70 and 120,435.96
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Solution
The fourth proportional to 217,229.14, 299,777.70 and 120,435.96 is: 166,202.45
Step by Step Solution
- Step 1: Write the proportion equation
217,229.14 : 299,777.70 = 120,435.96 : x - Step 2: Convert to fraction form
217,229.14/299,777.70 = 120,435.96/x - Step 3: Cross multiply
217,229.14x = 299,777.70 × 120,435.96 - Step 4: Simplify right side
217,229.14x = 36,104,015,086.09 - Step 5: Solve for x
x = 36,104,015,086.09/217,229.14 - Step 6: Final answer
x = 166,202.45
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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.