Finding the Fourth Proportional to 306,207.20, 459,310.80 and 272,964.80
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Solution
The fourth proportional to 306,207.20, 459,310.80 and 272,964.80 is: 409,447.20
Step by Step Solution
- Step 1: Write the proportion equation
306,207.20 : 459,310.80 = 272,964.80 : x - Step 2: Convert to fraction form
306,207.20/459,310.80 = 272,964.80/x - Step 3: Cross multiply
306,207.20x = 459,310.80 × 272,964.80 - Step 4: Simplify right side
306,207.20x = 125,375,680,659.84 - Step 5: Solve for x
x = 125,375,680,659.84/306,207.20 - Step 6: Final answer
x = 409,447.20
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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.