Finding the Fourth Proportional to 285,613.13, 394,146.11 and 158,296.92
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Solution
The fourth proportional to 285,613.13, 394,146.11 and 158,296.92 is: 218,449.75
Step by Step Solution
- Step 1: Write the proportion equation
285,613.13 : 394,146.11 = 158,296.92 : x - Step 2: Convert to fraction form
285,613.13/394,146.11 = 158,296.92/x - Step 3: Cross multiply
285,613.13x = 394,146.11 × 158,296.92 - Step 4: Simplify right side
285,613.13x = 62,392,115,638.72 - Step 5: Solve for x
x = 62,392,115,638.72/285,613.13 - Step 6: Final answer
x = 218,449.75
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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.