Finding the Fourth Proportional to 215,959.80, 323,939.70 and 163,471.80
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Solution
The fourth proportional to 215,959.80, 323,939.70 and 163,471.80 is: 245,207.70
Step by Step Solution
- Step 1: Write the proportion equation
215,959.80 : 323,939.70 = 163,471.80 : x - Step 2: Convert to fraction form
215,959.80/323,939.70 = 163,471.80/x - Step 3: Cross multiply
215,959.80x = 323,939.70 × 163,471.80 - Step 4: Simplify right side
215,959.80x = 52,955,005,850.46 - Step 5: Solve for x
x = 52,955,005,850.46/215,959.80 - Step 6: Final answer
x = 245,207.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.