Finding the Fourth Proportional to 199,844.22, 275,654.43 and 128,110.62
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Solution
The fourth proportional to 199,844.22, 275,654.43 and 128,110.62 is: 176,708.94
Step by Step Solution
- Step 1: Write the proportion equation
199,844.22 : 275,654.43 = 128,110.62 : x - Step 2: Convert to fraction form
199,844.22/275,654.43 = 128,110.62/x - Step 3: Cross multiply
199,844.22x = 275,654.43 × 128,110.62 - Step 4: Simplify right side
199,844.22x = 35,314,259,933.05 - Step 5: Solve for x
x = 35,314,259,933.05/199,844.22 - Step 6: Final answer
x = 176,708.94
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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.