Finding the Fourth Proportional to 320,688.42, 442,531.58 and 177,441.27
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Solution
The fourth proportional to 320,688.42, 442,531.58 and 177,441.27 is: 244,858.75
Step by Step Solution
- Step 1: Write the proportion equation
320,688.42 : 442,531.58 = 177,441.27 : x - Step 2: Convert to fraction form
320,688.42/442,531.58 = 177,441.27/x - Step 3: Cross multiply
320,688.42x = 442,531.58 × 177,441.27 - Step 4: Simplify right side
320,688.42x = 78,523,365,570.31 - Step 5: Solve for x
x = 78,523,365,570.31/320,688.42 - Step 6: Final answer
x = 244,858.75
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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.