Finding the Fourth Proportional to 397,129.11, 548,117.93 and 235,953.19
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Solution
The fourth proportional to 397,129.11, 548,117.93 and 235,953.19 is: 325,662.79
Step by Step Solution
- Step 1: Write the proportion equation
397,129.11 : 548,117.93 = 235,953.19 : x - Step 2: Convert to fraction form
397,129.11/548,117.93 = 235,953.19/x - Step 3: Cross multiply
397,129.11x = 548,117.93 × 235,953.19 - Step 4: Simplify right side
397,129.11x = 129,330,173,299.29 - Step 5: Solve for x
x = 129,330,173,299.29/397,129.11 - Step 6: Final answer
x = 325,662.79
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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.