Finding the Fourth Proportional to 387,523.17, 534,791.16 and 215,446.37
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Solution
The fourth proportional to 387,523.17, 534,791.16 and 215,446.37 is: 297,321.09
Step by Step Solution
- Step 1: Write the proportion equation
387,523.17 : 534,791.16 = 215,446.37 : x - Step 2: Convert to fraction form
387,523.17/534,791.16 = 215,446.37/x - Step 3: Cross multiply
387,523.17x = 534,791.16 × 215,446.37 - Step 4: Simplify right side
387,523.17x = 115,218,811,456.13 - Step 5: Solve for x
x = 115,218,811,456.13/387,523.17 - Step 6: Final answer
x = 297,321.09
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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.