Finding the Fourth Proportional to 211,635.49, 292,070.09 and 139,891.09
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Solution
The fourth proportional to 211,635.49, 292,070.09 and 139,891.09 is: 193,058.37
Step by Step Solution
- Step 1: Write the proportion equation
211,635.49 : 292,070.09 = 139,891.09 : x - Step 2: Convert to fraction form
211,635.49/292,070.09 = 139,891.09/x - Step 3: Cross multiply
211,635.49x = 292,070.09 × 139,891.09 - Step 4: Simplify right side
211,635.49x = 40,858,002,135.88 - Step 5: Solve for x
x = 40,858,002,135.88/211,635.49 - Step 6: Final answer
x = 193,058.37
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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.