Finding the Fourth Proportional to 211,818.63, 292,236.61 and 135,382.47
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Solution
The fourth proportional to 211,818.63, 292,236.61 and 135,382.47 is: 186,781.09
Step by Step Solution
- Step 1: Write the proportion equation
211,818.63 : 292,236.61 = 135,382.47 : x - Step 2: Convert to fraction form
211,818.63/292,236.61 = 135,382.47/x - Step 3: Cross multiply
211,818.63x = 292,236.61 × 135,382.47 - Step 4: Simplify right side
211,818.63x = 39,563,714,086.23 - Step 5: Solve for x
x = 39,563,714,086.23/211,818.63 - Step 6: Final answer
x = 186,781.09
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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.