Finding the Fourth Proportional to 225,415.92, 311,073.48 and 129,921.96
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Solution
The fourth proportional to 225,415.92, 311,073.48 and 129,921.96 is: 179,292.02
Step by Step Solution
- Step 1: Write the proportion equation
225,415.92 : 311,073.48 = 129,921.96 : x - Step 2: Convert to fraction form
225,415.92/311,073.48 = 129,921.96/x - Step 3: Cross multiply
225,415.92x = 311,073.48 × 129,921.96 - Step 4: Simplify right side
225,415.92x = 40,415,276,225.62 - Step 5: Solve for x
x = 40,415,276,225.62/225,415.92 - Step 6: Final answer
x = 179,292.02
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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.