Finding the Fourth Proportional to 211,207.96, 291,475.02 and 120,578.68
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Solution
The fourth proportional to 211,207.96, 291,475.02 and 120,578.68 is: 166,403.17
Step by Step Solution
- Step 1: Write the proportion equation
211,207.96 : 291,475.02 = 120,578.68 : x - Step 2: Convert to fraction form
211,207.96/291,475.02 = 120,578.68/x - Step 3: Cross multiply
211,207.96x = 291,475.02 × 120,578.68 - Step 4: Simplify right side
211,207.96x = 35,145,673,164.57 - Step 5: Solve for x
x = 35,145,673,164.57/211,207.96 - Step 6: Final answer
x = 166,403.17
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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.