Finding the Fourth Proportional to 397,472.76, 548,331.49 and 236,236.18
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Solution
The fourth proportional to 397,472.76, 548,331.49 and 236,236.18 is: 325,898.40
Step by Step Solution
- Step 1: Write the proportion equation
397,472.76 : 548,331.49 = 236,236.18 : x - Step 2: Convert to fraction form
397,472.76/548,331.49 = 236,236.18/x - Step 3: Cross multiply
397,472.76x = 548,331.49 × 236,236.18 - Step 4: Simplify right side
397,472.76x = 129,535,736,571.31 - Step 5: Solve for x
x = 129,535,736,571.31/397,472.76 - Step 6: Final answer
x = 325,898.40
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Double scale
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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.