Finding the Fourth Proportional to 210,738.91, 290,819.68 and 115,245.67
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Solution
The fourth proportional to 210,738.91, 290,819.68 and 115,245.67 is: 159,039.02
Step by Step Solution
- Step 1: Write the proportion equation
210,738.91 : 290,819.68 = 115,245.67 : x - Step 2: Convert to fraction form
210,738.91/290,819.68 = 115,245.67/x - Step 3: Cross multiply
210,738.91x = 290,819.68 × 115,245.67 - Step 4: Simplify right side
210,738.91x = 33,515,708,870.79 - Step 5: Solve for x
x = 33,515,708,870.79/210,738.91 - Step 6: Final answer
x = 159,039.02
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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.