Finding the Fourth Proportional to 319,618.98, 479,091.41 and 106,329.75
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Solution
The fourth proportional to 319,618.98, 479,091.41 and 106,329.75 is: 159,382.50
Step by Step Solution
- Step 1: Write the proportion equation
319,618.98 : 479,091.41 = 106,329.75 : x - Step 2: Convert to fraction form
319,618.98/479,091.41 = 106,329.75/x - Step 3: Cross multiply
319,618.98x = 479,091.41 × 106,329.75 - Step 4: Simplify right side
319,618.98x = 50,941,669,944.11 - Step 5: Solve for x
x = 50,941,669,944.11/319,618.98 - Step 6: Final answer
x = 159,382.50
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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.