Finding the Fourth Proportional to 326,201.20, 489,301.80 and 247,469.20
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Solution
The fourth proportional to 326,201.20, 489,301.80 and 247,469.20 is: 371,203.80
Step by Step Solution
- Step 1: Write the proportion equation
326,201.20 : 489,301.80 = 247,469.20 : x - Step 2: Convert to fraction form
326,201.20/489,301.80 = 247,469.20/x - Step 3: Cross multiply
326,201.20x = 489,301.80 × 247,469.20 - Step 4: Simplify right side
326,201.20x = 121,087,125,004.56 - Step 5: Solve for x
x = 121,087,125,004.56/326,201.20 - Step 6: Final answer
x = 371,203.80
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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.