Finding the Fourth Proportional to 345,213.09, 476,393.60 and 202,000.74
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Solution
The fourth proportional to 345,213.09, 476,393.60 and 202,000.74 is: 278,760.75
Step by Step Solution
- Step 1: Write the proportion equation
345,213.09 : 476,393.60 = 202,000.74 : x - Step 2: Convert to fraction form
345,213.09/476,393.60 = 202,000.74/x - Step 3: Cross multiply
345,213.09x = 476,393.60 × 202,000.74 - Step 4: Simplify right side
345,213.09x = 96,231,858,449.79 - Step 5: Solve for x
x = 96,231,858,449.79/345,213.09 - Step 6: Final answer
x = 278,760.75
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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.