Finding the Fourth Proportional to 211,965.30, 292,528.39 and 121,349.69
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Solution
The fourth proportional to 211,965.30, 292,528.39 and 121,349.69 is: 167,471.88
Step by Step Solution
- Step 1: Write the proportion equation
211,965.30 : 292,528.39 = 121,349.69 : x - Step 2: Convert to fraction form
211,965.30/292,528.39 = 121,349.69/x - Step 3: Cross multiply
211,965.30x = 292,528.39 × 121,349.69 - Step 4: Simplify right side
211,965.30x = 35,498,227,676.68 - Step 5: Solve for x
x = 35,498,227,676.68/211,965.30 - Step 6: Final answer
x = 167,471.88
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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.