Finding the Fourth Proportional to 265,474.18, 398,199.68 and 85,555.62
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Solution
The fourth proportional to 265,474.18, 398,199.68 and 85,555.62 is: 128,329.69
Step by Step Solution
- Step 1: Write the proportion equation
265,474.18 : 398,199.68 = 85,555.62 : x - Step 2: Convert to fraction form
265,474.18/398,199.68 = 85,555.62/x - Step 3: Cross multiply
265,474.18x = 398,199.68 × 85,555.62 - Step 4: Simplify right side
265,474.18x = 34,068,218,087.43 - Step 5: Solve for x
x = 34,068,218,087.43/265,474.18 - Step 6: Final answer
x = 128,329.69
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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.