Finding the Fourth Proportional to 256,137.57, 353,437.25 and 142,965.09
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Solution
The fourth proportional to 256,137.57, 353,437.25 and 142,965.09 is: 197,273.63
Step by Step Solution
- Step 1: Write the proportion equation
256,137.57 : 353,437.25 = 142,965.09 : x - Step 2: Convert to fraction form
256,137.57/353,437.25 = 142,965.09/x - Step 3: Cross multiply
256,137.57x = 353,437.25 × 142,965.09 - Step 4: Simplify right side
256,137.57x = 50,529,187,540.78 - Step 5: Solve for x
x = 50,529,187,540.78/256,137.57 - Step 6: Final answer
x = 197,273.63
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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.