Finding the Fourth Proportional to 327,778.02, 491,858.22 and 138,226.68
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Solution
The fourth proportional to 327,778.02, 491,858.22 and 138,226.68 is: 207,420.65
Step by Step Solution
- Step 1: Write the proportion equation
327,778.02 : 491,858.22 = 138,226.68 : x - Step 2: Convert to fraction form
327,778.02/491,858.22 = 138,226.68/x - Step 3: Cross multiply
327,778.02x = 491,858.22 × 138,226.68 - Step 4: Simplify right side
327,778.02x = 67,987,928,781.31 - Step 5: Solve for x
x = 67,987,928,781.31/327,778.02 - Step 6: Final answer
x = 207,420.65
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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.