Finding the Fourth Proportional to 326,141.70, 489,212.55 and 247,409.70
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Solution
The fourth proportional to 326,141.70, 489,212.55 and 247,409.70 is: 371,114.55
Step by Step Solution
- Step 1: Write the proportion equation
326,141.70 : 489,212.55 = 247,409.70 : x - Step 2: Convert to fraction form
326,141.70/489,212.55 = 247,409.70/x - Step 3: Cross multiply
326,141.70x = 489,212.55 × 247,409.70 - Step 4: Simplify right side
326,141.70x = 121,035,930,231.74 - Step 5: Solve for x
x = 121,035,930,231.74/326,141.70 - Step 6: Final answer
x = 371,114.55
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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.