Finding the Fourth Proportional to 197,819.91, 272,989.26 and 107,173.62
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Solution
The fourth proportional to 197,819.91, 272,989.26 and 107,173.62 is: 147,898.40
Step by Step Solution
- Step 1: Write the proportion equation
197,819.91 : 272,989.26 = 107,173.62 : x - Step 2: Convert to fraction form
197,819.91/272,989.26 = 107,173.62/x - Step 3: Cross multiply
197,819.91x = 272,989.26 × 107,173.62 - Step 4: Simplify right side
197,819.91x = 29,257,247,215.32 - Step 5: Solve for x
x = 29,257,247,215.32/197,819.91 - Step 6: Final answer
x = 147,898.40
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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.