Finding the Fourth Proportional to 299,604.11, 413,451.45 and 163,638.09
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Solution
The fourth proportional to 299,604.11, 413,451.45 and 163,638.09 is: 225,819.35
Step by Step Solution
- Step 1: Write the proportion equation
299,604.11 : 413,451.45 = 163,638.09 : x - Step 2: Convert to fraction form
299,604.11/413,451.45 = 163,638.09/x - Step 3: Cross multiply
299,604.11x = 413,451.45 × 163,638.09 - Step 4: Simplify right side
299,604.11x = 67,656,405,585.73 - Step 5: Solve for x
x = 67,656,405,585.73/299,604.11 - Step 6: Final answer
x = 225,819.35
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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.