Finding the Fourth Proportional to 325,630.20, 488,531.70 and 115,246.20
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Solution
The fourth proportional to 325,630.20, 488,531.70 and 115,246.20 is: 172,899.88
Step by Step Solution
- Step 1: Write the proportion equation
325,630.20 : 488,531.70 = 115,246.20 : x - Step 2: Convert to fraction form
325,630.20/488,531.70 = 115,246.20/x - Step 3: Cross multiply
325,630.20x = 488,531.70 × 115,246.20 - Step 4: Simplify right side
325,630.20x = 56,301,422,004.54 - Step 5: Solve for x
x = 56,301,422,004.54/325,630.20 - Step 6: Final answer
x = 172,899.88
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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.