Finding the Fourth Proportional to 220,879.10, 331,318.65 and 73,135.10
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Solution
The fourth proportional to 220,879.10, 331,318.65 and 73,135.10 is: 109,702.65
Step by Step Solution
- Step 1: Write the proportion equation
220,879.10 : 331,318.65 = 73,135.10 : x - Step 2: Convert to fraction form
220,879.10/331,318.65 = 73,135.10/x - Step 3: Cross multiply
220,879.10x = 331,318.65 × 73,135.10 - Step 4: Simplify right side
220,879.10x = 24,231,022,599.62 - Step 5: Solve for x
x = 24,231,022,599.62/220,879.10 - Step 6: Final answer
x = 109,702.65
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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.