Finding the Fourth Proportional to 286,919.90, 395,944.09 and 196,272.80
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Solution
The fourth proportional to 286,919.90, 395,944.09 and 196,272.80 is: 270,852.79
Step by Step Solution
- Step 1: Write the proportion equation
286,919.90 : 395,944.09 = 196,272.80 : x - Step 2: Convert to fraction form
286,919.90/395,944.09 = 196,272.80/x - Step 3: Cross multiply
286,919.90x = 395,944.09 × 196,272.80 - Step 4: Simplify right side
286,919.90x = 77,713,055,187.75 - Step 5: Solve for x
x = 77,713,055,187.75/286,919.90 - Step 6: Final answer
x = 270,852.79
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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.