Finding the Fourth Proportional to 320,260.19, 441,920.79 and 177,000.75
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Solution
The fourth proportional to 320,260.19, 441,920.79 and 177,000.75 is: 244,239.89
Step by Step Solution
- Step 1: Write the proportion equation
320,260.19 : 441,920.79 = 177,000.75 : x - Step 2: Convert to fraction form
320,260.19/441,920.79 = 177,000.75/x - Step 3: Cross multiply
320,260.19x = 441,920.79 × 177,000.75 - Step 4: Simplify right side
320,260.19x = 78,220,311,490.39 - Step 5: Solve for x
x = 78,220,311,490.39/320,260.19 - Step 6: Final answer
x = 244,239.89
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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.