Finding the Fourth Proportional to 213,514.73, 320,305.31 and 71,315.99
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Solution
The fourth proportional to 213,514.73, 320,305.31 and 71,315.99 is: 106,985.08
Step by Step Solution
- Step 1: Write the proportion equation
213,514.73 : 320,305.31 = 71,315.99 : x - Step 2: Convert to fraction form
213,514.73/320,305.31 = 71,315.99/x - Step 3: Cross multiply
213,514.73x = 320,305.31 × 71,315.99 - Step 4: Simplify right side
213,514.73x = 22,842,890,284.91 - Step 5: Solve for x
x = 22,842,890,284.91/213,514.73 - Step 6: Final answer
x = 106,985.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.