Finding the Fourth Proportional to 287,183.22, 396,309.58 and 158,119.05
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Solution
The fourth proportional to 287,183.22, 396,309.58 and 158,119.05 is: 218,202.50
Step by Step Solution
- Step 1: Write the proportion equation
287,183.22 : 396,309.58 = 158,119.05 : x - Step 2: Convert to fraction form
287,183.22/396,309.58 = 158,119.05/x - Step 3: Cross multiply
287,183.22x = 396,309.58 × 158,119.05 - Step 4: Simplify right side
287,183.22x = 62,664,095,979.31 - Step 5: Solve for x
x = 62,664,095,979.31/287,183.22 - Step 6: Final answer
x = 218,202.50
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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.