Finding the Fourth Proportional to 215,561.56, 297,480.96 and 129,491.58
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Solution
The fourth proportional to 215,561.56, 297,480.96 and 129,491.58 is: 178,701.99
Step by Step Solution
- Step 1: Write the proportion equation
215,561.56 : 297,480.96 = 129,491.58 : x - Step 2: Convert to fraction form
215,561.56/297,480.96 = 129,491.58/x - Step 3: Cross multiply
215,561.56x = 297,480.96 × 129,491.58 - Step 4: Simplify right side
215,561.56x = 38,521,279,530.32 - Step 5: Solve for x
x = 38,521,279,530.32/215,561.56 - Step 6: Final answer
x = 178,701.99
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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.