Finding the Fourth Proportional to 219,879.30, 329,832.62 and 79,639.14
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Solution
The fourth proportional to 219,879.30, 329,832.62 and 79,639.14 is: 119,463.66
Step by Step Solution
- Step 1: Write the proportion equation
219,879.30 : 329,832.62 = 79,639.14 : x - Step 2: Convert to fraction form
219,879.30/329,832.62 = 79,639.14/x - Step 3: Cross multiply
219,879.30x = 329,832.62 × 79,639.14 - Step 4: Simplify right side
219,879.30x = 26,267,586,200.75 - Step 5: Solve for x
x = 26,267,586,200.75/219,879.30 - Step 6: Final answer
x = 119,463.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.