Finding the Fourth Proportional to 320,611.80, 442,451.34 and 177,382.02
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Solution
The fourth proportional to 320,611.80, 442,451.34 and 177,382.02 is: 244,791.09
Step by Step Solution
- Step 1: Write the proportion equation
320,611.80 : 442,451.34 = 177,382.02 : x - Step 2: Convert to fraction form
320,611.80/442,451.34 = 177,382.02/x - Step 3: Cross multiply
320,611.80x = 442,451.34 × 177,382.02 - Step 4: Simplify right side
320,611.80x = 78,482,912,440.91 - Step 5: Solve for x
x = 78,482,912,440.91/320,611.80 - Step 6: Final answer
x = 244,791.09
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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.