Finding the Fourth Proportional to 397,015.12, 547,905.36 and 227,245.60
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Solution
The fourth proportional to 397,015.12, 547,905.36 and 227,245.60 is: 313,612.95
Step by Step Solution
- Step 1: Write the proportion equation
397,015.12 : 547,905.36 = 227,245.60 : x - Step 2: Convert to fraction form
397,015.12/547,905.36 = 227,245.60/x - Step 3: Cross multiply
397,015.12x = 547,905.36 × 227,245.60 - Step 4: Simplify right side
397,015.12x = 124,509,082,276.42 - Step 5: Solve for x
x = 124,509,082,276.42/397,015.12 - Step 6: Final answer
x = 313,612.95
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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.