Finding the Fourth Proportional to 217,742.57, 326,486.73 and 84,467.09
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Solution
The fourth proportional to 217,742.57, 326,486.73 and 84,467.09 is: 126,651.33
Step by Step Solution
- Step 1: Write the proportion equation
217,742.57 : 326,486.73 = 84,467.09 : x - Step 2: Convert to fraction form
217,742.57/326,486.73 = 84,467.09/x - Step 3: Cross multiply
217,742.57x = 326,486.73 × 84,467.09 - Step 4: Simplify right side
217,742.57x = 27,577,385,139.68 - Step 5: Solve for x
x = 27,577,385,139.68/217,742.57 - Step 6: Final answer
x = 126,651.33
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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.