Finding the Fourth Proportional to 325,489.92, 488,264.04 and 115,129.68
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Solution
The fourth proportional to 325,489.92, 488,264.04 and 115,129.68 is: 172,704.83
Step by Step Solution
- Step 1: Write the proportion equation
325,489.92 : 488,264.04 = 115,129.68 : x - Step 2: Convert to fraction form
325,489.92/488,264.04 = 115,129.68/x - Step 3: Cross multiply
325,489.92x = 488,264.04 × 115,129.68 - Step 4: Simplify right side
325,489.92x = 56,213,682,680.71 - Step 5: Solve for x
x = 56,213,682,680.71/325,489.92 - Step 6: Final answer
x = 172,704.83
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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.