Finding the Fourth Proportional to 243,728.26, 336,391.50 and 163,296.03
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Solution
The fourth proportional to 243,728.26, 336,391.50 and 163,296.03 is: 225,379.68
Step by Step Solution
- Step 1: Write the proportion equation
243,728.26 : 336,391.50 = 163,296.03 : x - Step 2: Convert to fraction form
243,728.26/336,391.50 = 163,296.03/x - Step 3: Cross multiply
243,728.26x = 336,391.50 × 163,296.03 - Step 4: Simplify right side
243,728.26x = 54,931,396,475.75 - Step 5: Solve for x
x = 54,931,396,475.75/243,728.26 - Step 6: Final answer
x = 225,379.68
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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.