Finding the Fourth Proportional to 217,457.10, 326,279.49 and 117,687.69
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Solution
The fourth proportional to 217,457.10, 326,279.49 and 117,687.69 is: 176,582.32
Step by Step Solution
- Step 1: Write the proportion equation
217,457.10 : 326,279.49 = 117,687.69 : x - Step 2: Convert to fraction form
217,457.10/326,279.49 = 117,687.69/x - Step 3: Cross multiply
217,457.10x = 326,279.49 × 117,687.69 - Step 4: Simplify right side
217,457.10x = 38,399,079,472.48 - Step 5: Solve for x
x = 38,399,079,472.48/217,457.10 - Step 6: Final answer
x = 176,582.32
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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.