Finding the Fourth Proportional to 197,666.20, 272,776.08 and 107,021.44
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Solution
The fourth proportional to 197,666.20, 272,776.08 and 107,021.44 is: 147,687.81
Step by Step Solution
- Step 1: Write the proportion equation
197,666.20 : 272,776.08 = 107,021.44 : x - Step 2: Convert to fraction form
197,666.20/272,776.08 = 107,021.44/x - Step 3: Cross multiply
197,666.20x = 272,776.08 × 107,021.44 - Step 4: Simplify right side
197,666.20x = 29,192,888,879.16 - Step 5: Solve for x
x = 29,192,888,879.16/197,666.20 - Step 6: Final answer
x = 147,687.81
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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.