Finding the Fourth Proportional to 256,620.95, 354,105.99 and 141,884.09
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Solution
The fourth proportional to 256,620.95, 354,105.99 and 141,884.09 is: 195,782.95
Step by Step Solution
- Step 1: Write the proportion equation
256,620.95 : 354,105.99 = 141,884.09 : x - Step 2: Convert to fraction form
256,620.95/354,105.99 = 141,884.09/x - Step 3: Cross multiply
256,620.95x = 354,105.99 × 141,884.09 - Step 4: Simplify right side
256,620.95x = 50,242,004,384.17 - Step 5: Solve for x
x = 50,242,004,384.17/256,620.95 - Step 6: Final answer
x = 195,782.95
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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.