Finding the Fourth Proportional to 265,717.23, 398,806.11 and 139,446.69
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Solution
The fourth proportional to 265,717.23, 398,806.11 and 139,446.69 is: 209,290.88
Step by Step Solution
- Step 1: Write the proportion equation
265,717.23 : 398,806.11 = 139,446.69 : x - Step 2: Convert to fraction form
265,717.23/398,806.11 = 139,446.69/x - Step 3: Cross multiply
265,717.23x = 398,806.11 × 139,446.69 - Step 4: Simplify right side
265,717.23x = 55,612,191,991.28 - Step 5: Solve for x
x = 55,612,191,991.28/265,717.23 - Step 6: Final answer
x = 209,290.88
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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.