Finding the Fourth Proportional to 252,721.38, 348,769.74 and 138,010.70
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Solution
The fourth proportional to 252,721.38, 348,769.74 and 138,010.70 is: 190,462.54
Step by Step Solution
- Step 1: Write the proportion equation
252,721.38 : 348,769.74 = 138,010.70 : x - Step 2: Convert to fraction form
252,721.38/348,769.74 = 138,010.70/x - Step 3: Cross multiply
252,721.38x = 348,769.74 × 138,010.70 - Step 4: Simplify right side
252,721.38x = 48,133,955,956.22 - Step 5: Solve for x
x = 48,133,955,956.22/252,721.38 - Step 6: Final answer
x = 190,462.54
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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.