Finding the Fourth Proportional to 211,638.25, 292,054.21 and 116,142.49
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Solution
The fourth proportional to 211,638.25, 292,054.21 and 116,142.49 is: 160,273.03
Step by Step Solution
- Step 1: Write the proportion equation
211,638.25 : 292,054.21 = 116,142.49 : x - Step 2: Convert to fraction form
211,638.25/292,054.21 = 116,142.49/x - Step 3: Cross multiply
211,638.25x = 292,054.21 × 116,142.49 - Step 4: Simplify right side
211,638.25x = 33,919,904,039.70 - Step 5: Solve for x
x = 33,919,904,039.70/211,638.25 - Step 6: Final answer
x = 160,273.03
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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.