Finding the Fourth Proportional to 326,352.17, 489,515.94 and 89,688.69
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Solution
The fourth proportional to 326,352.17, 489,515.94 and 89,688.69 is: 134,529.65
Step by Step Solution
- Step 1: Write the proportion equation
326,352.17 : 489,515.94 = 89,688.69 : x - Step 2: Convert to fraction form
326,352.17/489,515.94 = 89,688.69/x - Step 3: Cross multiply
326,352.17x = 489,515.94 × 89,688.69 - Step 4: Simplify right side
326,352.17x = 43,904,043,392.72 - Step 5: Solve for x
x = 43,904,043,392.72/326,352.17 - Step 6: Final answer
x = 134,529.65
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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.