Finding the Fourth Proportional to 320,420.93, 442,183.73 and 177,190.65
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Solution
The fourth proportional to 320,420.93, 442,183.73 and 177,190.65 is: 244,524.67
Step by Step Solution
- Step 1: Write the proportion equation
320,420.93 : 442,183.73 = 177,190.65 : x - Step 2: Convert to fraction form
320,420.93/442,183.73 = 177,190.65/x - Step 3: Cross multiply
320,420.93x = 442,183.73 × 177,190.65 - Step 4: Simplify right side
320,420.93x = 78,350,821,652.17 - Step 5: Solve for x
x = 78,350,821,652.17/320,420.93 - Step 6: Final answer
x = 244,524.67
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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.