Finding the Fourth Proportional to 396,524.58, 547,189.07 and 215,232.62
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Solution
The fourth proportional to 396,524.58, 547,189.07 and 215,232.62 is: 297,012.95
Step by Step Solution
- Step 1: Write the proportion equation
396,524.58 : 547,189.07 = 215,232.62 : x - Step 2: Convert to fraction form
396,524.58/547,189.07 = 215,232.62/x - Step 3: Cross multiply
396,524.58x = 547,189.07 × 215,232.62 - Step 4: Simplify right side
396,524.58x = 117,772,933,359.36 - Step 5: Solve for x
x = 117,772,933,359.36/396,524.58 - Step 6: Final answer
x = 297,012.95
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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.