Finding the Fourth Proportional to 472,837.20, 709,716.60 and 236,446.80
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Solution
The fourth proportional to 472,837.20, 709,716.60 and 236,446.80 is: 354,900.63
Step by Step Solution
- Step 1: Write the proportion equation
472,837.20 : 709,716.60 = 236,446.80 : x - Step 2: Convert to fraction form
472,837.20/709,716.60 = 236,446.80/x - Step 3: Cross multiply
472,837.20x = 709,716.60 × 236,446.80 - Step 4: Simplify right side
472,837.20x = 167,810,218,976.88 - Step 5: Solve for x
x = 167,810,218,976.88/472,837.20 - Step 6: Final answer
x = 354,900.63
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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.