Finding the Fourth Proportional to 251,286.10, 346,770.79 and 138,106.42
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Solution
The fourth proportional to 251,286.10, 346,770.79 and 138,106.42 is: 190,584.65
Step by Step Solution
- Step 1: Write the proportion equation
251,286.10 : 346,770.79 = 138,106.42 : x - Step 2: Convert to fraction form
251,286.10/346,770.79 = 138,106.42/x - Step 3: Cross multiply
251,286.10x = 346,770.79 × 138,106.42 - Step 4: Simplify right side
251,286.10x = 47,891,272,367.47 - Step 5: Solve for x
x = 47,891,272,367.47/251,286.10 - Step 6: Final answer
x = 190,584.65
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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.