Finding the Fourth Proportional to 225,342.88, 310,977.36 and 129,833.44
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Solution
The fourth proportional to 225,342.88, 310,977.36 and 129,833.44 is: 179,172.56
Step by Step Solution
- Step 1: Write the proportion equation
225,342.88 : 310,977.36 = 129,833.44 : x - Step 2: Convert to fraction form
225,342.88/310,977.36 = 129,833.44/x - Step 3: Cross multiply
225,342.88x = 310,977.36 × 129,833.44 - Step 4: Simplify right side
225,342.88x = 40,375,260,410.92 - Step 5: Solve for x
x = 40,375,260,410.92/225,342.88 - Step 6: Final answer
x = 179,172.56
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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.