Finding the Fourth Proportional to 320,811.28, 442,673.21 and 177,570.97
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Solution
The fourth proportional to 320,811.28, 442,673.21 and 177,570.97 is: 245,022.28
Step by Step Solution
- Step 1: Write the proportion equation
320,811.28 : 442,673.21 = 177,570.97 : x - Step 2: Convert to fraction form
320,811.28/442,673.21 = 177,570.97/x - Step 3: Cross multiply
320,811.28x = 442,673.21 × 177,570.97 - Step 4: Simplify right side
320,811.28x = 78,605,910,629.96 - Step 5: Solve for x
x = 78,605,910,629.96/320,811.28 - Step 6: Final answer
x = 245,022.28
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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.