Finding the Fourth Proportional to 445,825.20, 615,238.74 and 254,842.68
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Solution
The fourth proportional to 445,825.20, 615,238.74 and 254,842.68 is: 351,682.88
Step by Step Solution
- Step 1: Write the proportion equation
445,825.20 : 615,238.74 = 254,842.68 : x - Step 2: Convert to fraction form
445,825.20/615,238.74 = 254,842.68/x - Step 3: Cross multiply
445,825.20x = 615,238.74 × 254,842.68 - Step 4: Simplify right side
445,825.20x = 156,789,089,341.42 - Step 5: Solve for x
x = 156,789,089,341.42/445,825.20 - Step 6: Final answer
x = 351,682.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.