Finding the Fourth Proportional to 213,545.26, 320,511.06 and 113,789.70
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Solution
The fourth proportional to 213,545.26, 320,511.06 and 113,789.70 is: 170,787.48
Step by Step Solution
- Step 1: Write the proportion equation
213,545.26 : 320,511.06 = 113,789.70 : x - Step 2: Convert to fraction form
213,545.26/320,511.06 = 113,789.70/x - Step 3: Cross multiply
213,545.26x = 320,511.06 × 113,789.70 - Step 4: Simplify right side
213,545.26x = 36,470,857,364.08 - Step 5: Solve for x
x = 36,470,857,364.08/213,545.26 - Step 6: Final answer
x = 170,787.48
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1.5x scale
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.