Finding the Fourth Proportional to 251,286.60, 346,771.49 and 138,106.92
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Solution
The fourth proportional to 251,286.60, 346,771.49 and 138,106.92 is: 190,585.34
Step by Step Solution
- Step 1: Write the proportion equation
251,286.60 : 346,771.49 = 138,106.92 : x - Step 2: Convert to fraction form
251,286.60/346,771.49 = 138,106.92/x - Step 3: Cross multiply
251,286.60x = 346,771.49 × 138,106.92 - Step 4: Simplify right side
251,286.60x = 47,891,541,737.18 - Step 5: Solve for x
x = 47,891,541,737.18/251,286.60 - Step 6: Final answer
x = 190,585.34
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1.5x scale
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.