Finding the Fourth Proportional to 243,687.05, 336,287.01 and 136,257.09
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Solution
The fourth proportional to 243,687.05, 336,287.01 and 136,257.09 is: 188,034.16
Step by Step Solution
- Step 1: Write the proportion equation
243,687.05 : 336,287.01 = 136,257.09 : x - Step 2: Convert to fraction form
243,687.05/336,287.01 = 136,257.09/x - Step 3: Cross multiply
243,687.05x = 336,287.01 × 136,257.09 - Step 4: Simplify right side
243,687.05x = 45,821,489,387.40 - Step 5: Solve for x
x = 45,821,489,387.40/243,687.05 - Step 6: Final answer
x = 188,034.16
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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.