Finding the Fourth Proportional to 325,475.80, 488,213.70 and 272,987.80
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Solution
The fourth proportional to 325,475.80, 488,213.70 and 272,987.80 is: 409,481.70
Step by Step Solution
- Step 1: Write the proportion equation
325,475.80 : 488,213.70 = 272,987.80 : x - Step 2: Convert to fraction form
325,475.80/488,213.70 = 272,987.80/x - Step 3: Cross multiply
325,475.80x = 488,213.70 × 272,987.80 - Step 4: Simplify right side
325,475.80x = 133,276,383,892.86 - Step 5: Solve for x
x = 133,276,383,892.86/325,475.80 - Step 6: Final answer
x = 409,481.70
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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.