Finding the Fourth Proportional to 199,859.17, 275,779.10 and 128,336.08
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Solution
The fourth proportional to 199,859.17, 275,779.10 and 128,336.08 is: 177,086.74
Step by Step Solution
- Step 1: Write the proportion equation
199,859.17 : 275,779.10 = 128,336.08 : x - Step 2: Convert to fraction form
199,859.17/275,779.10 = 128,336.08/x - Step 3: Cross multiply
199,859.17x = 275,779.10 × 128,336.08 - Step 4: Simplify right side
199,859.17x = 35,392,407,998.25 - Step 5: Solve for x
x = 35,392,407,998.25/199,859.17 - Step 6: Final answer
x = 177,086.74
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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.