Finding the Fourth Proportional to 299,722.09, 413,611.64 and 163,753.11
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Solution
The fourth proportional to 299,722.09, 413,611.64 and 163,753.11 is: 225,976.65
Step by Step Solution
- Step 1: Write the proportion equation
299,722.09 : 413,611.64 = 163,753.11 : x - Step 2: Convert to fraction form
299,722.09/413,611.64 = 163,753.11/x - Step 3: Cross multiply
299,722.09x = 413,611.64 × 163,753.11 - Step 4: Simplify right side
299,722.09x = 67,730,192,382.20 - Step 5: Solve for x
x = 67,730,192,382.20/299,722.09 - Step 6: Final answer
x = 225,976.65
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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.