Finding the Fourth Proportional to 251,919.26, 347,622.87 and 155,107.76
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Solution
The fourth proportional to 251,919.26, 347,622.87 and 155,107.76 is: 214,032.88
Step by Step Solution
- Step 1: Write the proportion equation
251,919.26 : 347,622.87 = 155,107.76 : x - Step 2: Convert to fraction form
251,919.26/347,622.87 = 155,107.76/x - Step 3: Cross multiply
251,919.26x = 347,622.87 × 155,107.76 - Step 4: Simplify right side
251,919.26x = 53,919,002,952.36 - Step 5: Solve for x
x = 53,919,002,952.36/251,919.26 - Step 6: Final answer
x = 214,032.88
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1.5x scale
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.