Finding the Fourth Proportional to 226,382.72, 312,399.36 and 125,787.20
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Solution
The fourth proportional to 226,382.72, 312,399.36 and 125,787.20 is: 173,581.45
Step by Step Solution
- Step 1: Write the proportion equation
226,382.72 : 312,399.36 = 125,787.20 : x - Step 2: Convert to fraction form
226,382.72/312,399.36 = 125,787.20/x - Step 3: Cross multiply
226,382.72x = 312,399.36 × 125,787.20 - Step 4: Simplify right side
226,382.72x = 39,295,840,776.19 - Step 5: Solve for x
x = 39,295,840,776.19/226,382.72 - Step 6: Final answer
x = 173,581.45
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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.