Finding the Fourth Proportional to 211,748.24, 317,622.36 and 71,605.28
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Solution
The fourth proportional to 211,748.24, 317,622.36 and 71,605.28 is: 107,407.92
Step by Step Solution
- Step 1: Write the proportion equation
211,748.24 : 317,622.36 = 71,605.28 : x - Step 2: Convert to fraction form
211,748.24/317,622.36 = 71,605.28/x - Step 3: Cross multiply
211,748.24x = 317,622.36 × 71,605.28 - Step 4: Simplify right side
211,748.24x = 22,743,438,022.06 - Step 5: Solve for x
x = 22,743,438,022.06/211,748.24 - Step 6: Final answer
x = 107,407.92
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1.5x scale
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.