Finding the Fourth Proportional to 369,549.75, 509,979.87 and 199,785.09
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Solution
The fourth proportional to 369,549.75, 509,979.87 and 199,785.09 is: 275,704.08
Step by Step Solution
- Step 1: Write the proportion equation
369,549.75 : 509,979.87 = 199,785.09 : x - Step 2: Convert to fraction form
369,549.75/509,979.87 = 199,785.09/x - Step 3: Cross multiply
369,549.75x = 509,979.87 × 199,785.09 - Step 4: Simplify right side
369,549.75x = 101,886,374,226.14 - Step 5: Solve for x
x = 101,886,374,226.14/369,549.75 - Step 6: Final answer
x = 275,704.08
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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.