Finding the Fourth Proportional to 387,633.14, 534,921.26 and 215,550.26
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Solution
The fourth proportional to 387,633.14, 534,921.26 and 215,550.26 is: 297,452.42
Step by Step Solution
- Step 1: Write the proportion equation
387,633.14 : 534,921.26 = 215,550.26 : x - Step 2: Convert to fraction form
387,633.14/534,921.26 = 215,550.26/x - Step 3: Cross multiply
387,633.14x = 534,921.26 × 215,550.26 - Step 4: Simplify right side
387,633.14x = 115,302,416,672.53 - Step 5: Solve for x
x = 115,302,416,672.53/387,633.14 - Step 6: Final answer
x = 297,452.42
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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.