Finding the Fourth Proportional to 299,649.12, 413,517.21 and 163,684.95
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Solution
The fourth proportional to 299,649.12, 413,517.21 and 163,684.95 is: 225,886.01
Step by Step Solution
- Step 1: Write the proportion equation
299,649.12 : 413,517.21 = 163,684.95 : x - Step 2: Convert to fraction form
299,649.12/413,517.21 = 163,684.95/x - Step 3: Cross multiply
299,649.12x = 413,517.21 × 163,684.95 - Step 4: Simplify right side
299,649.12x = 67,686,543,842.99 - Step 5: Solve for x
x = 67,686,543,842.99/299,649.12 - Step 6: Final answer
x = 225,886.01
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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.