Finding the Fourth Proportional to 217,992.45, 326,854.86 and 84,717.09
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Solution
The fourth proportional to 217,992.45, 326,854.86 and 84,717.09 is: 127,023.63
Step by Step Solution
- Step 1: Write the proportion equation
217,992.45 : 326,854.86 = 84,717.09 : x - Step 2: Convert to fraction form
217,992.45/326,854.86 = 84,717.09/x - Step 3: Cross multiply
217,992.45x = 326,854.86 × 84,717.09 - Step 4: Simplify right side
217,992.45x = 27,690,192,591.56 - Step 5: Solve for x
x = 27,690,192,591.56/217,992.45 - Step 6: Final answer
x = 127,023.63
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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.