Finding the Fourth Proportional to 211,305.11, 317,239.20 and 122,622.26
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Solution
The fourth proportional to 211,305.11, 317,239.20 and 122,622.26 is: 184,096.76
Step by Step Solution
- Step 1: Write the proportion equation
211,305.11 : 317,239.20 = 122,622.26 : x - Step 2: Convert to fraction form
211,305.11/317,239.20 = 122,622.26/x - Step 3: Cross multiply
211,305.11x = 317,239.20 × 122,622.26 - Step 4: Simplify right side
211,305.11x = 38,900,586,078.40 - Step 5: Solve for x
x = 38,900,586,078.40/211,305.11 - Step 6: Final answer
x = 184,096.76
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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.