Finding the Fourth Proportional to 219,879.36, 303,438.96 and 134,948.16
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Solution
The fourth proportional to 219,879.36, 303,438.96 and 134,948.16 is: 186,231.80
Step by Step Solution
- Step 1: Write the proportion equation
219,879.36 : 303,438.96 = 134,948.16 : x - Step 2: Convert to fraction form
219,879.36/303,438.96 = 134,948.16/x - Step 3: Cross multiply
219,879.36x = 303,438.96 × 134,948.16 - Step 4: Simplify right side
219,879.36x = 40,948,529,324.31 - Step 5: Solve for x
x = 40,948,529,324.31/219,879.36 - Step 6: Final answer
x = 186,231.80
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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.