Finding the Fourth Proportional to 320,685.48, 442,539.72 and 177,445.62
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Solution
The fourth proportional to 320,685.48, 442,539.72 and 177,445.62 is: 244,871.50
Step by Step Solution
- Step 1: Write the proportion equation
320,685.48 : 442,539.72 = 177,445.62 : x - Step 2: Convert to fraction form
320,685.48/442,539.72 = 177,445.62/x - Step 3: Cross multiply
320,685.48x = 442,539.72 × 177,445.62 - Step 4: Simplify right side
320,685.48x = 78,526,734,990.03 - Step 5: Solve for x
x = 78,526,734,990.03/320,685.48 - Step 6: Final answer
x = 244,871.50
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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.