Finding the Fourth Proportional to 320,959.97, 442,919.34 and 177,716.94
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Solution
The fourth proportional to 320,959.97, 442,919.34 and 177,716.94 is: 245,246.37
Step by Step Solution
- Step 1: Write the proportion equation
320,959.97 : 442,919.34 = 177,716.94 : x - Step 2: Convert to fraction form
320,959.97/442,919.34 = 177,716.94/x - Step 3: Cross multiply
320,959.97x = 442,919.34 × 177,716.94 - Step 4: Simplify right side
320,959.97x = 78,714,268,110.67 - Step 5: Solve for x
x = 78,714,268,110.67/320,959.97 - Step 6: Final answer
x = 245,246.37
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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.