Finding the Fourth Proportional to 320,837.76, 442,737.09 and 177,589.26
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Solution
The fourth proportional to 320,837.76, 442,737.09 and 177,589.26 is: 245,062.65
Step by Step Solution
- Step 1: Write the proportion equation
320,837.76 : 442,737.09 = 177,589.26 : x - Step 2: Convert to fraction form
320,837.76/442,737.09 = 177,589.26/x - Step 3: Cross multiply
320,837.76x = 442,737.09 × 177,589.26 - Step 4: Simplify right side
320,837.76x = 78,625,352,187.65 - Step 5: Solve for x
x = 78,625,352,187.65/320,837.76 - Step 6: Final answer
x = 245,062.65
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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.