Finding the Fourth Proportional to 299,979.64, 413,976.33 and 203,213.09
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Solution
The fourth proportional to 299,979.64, 413,976.33 and 203,213.09 is: 280,437.06
Step by Step Solution
- Step 1: Write the proportion equation
299,979.64 : 413,976.33 = 203,213.09 : x - Step 2: Convert to fraction form
299,979.64/413,976.33 = 203,213.09/x - Step 3: Cross multiply
299,979.64x = 413,976.33 × 203,213.09 - Step 4: Simplify right side
299,979.64x = 84,125,409,206.16 - Step 5: Solve for x
x = 84,125,409,206.16/299,979.64 - Step 6: Final answer
x = 280,437.06
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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.