Finding the Fourth Proportional to 326,163.95, 489,128.69 and 112,873.95
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Solution
The fourth proportional to 326,163.95, 489,128.69 and 112,873.95 is: 169,270.35
Step by Step Solution
- Step 1: Write the proportion equation
326,163.95 : 489,128.69 = 112,873.95 : x - Step 2: Convert to fraction form
326,163.95/489,128.69 = 112,873.95/x - Step 3: Cross multiply
326,163.95x = 489,128.69 × 112,873.95 - Step 4: Simplify right side
326,163.95x = 55,209,886,734.26 - Step 5: Solve for x
x = 55,209,886,734.26/326,163.95 - Step 6: Final answer
x = 169,270.35
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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.