Finding the Fourth Proportional to 256,057.74, 353,277.45 and 142,858.62
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Solution
The fourth proportional to 256,057.74, 353,277.45 and 142,858.62 is: 197,099.02
Step by Step Solution
- Step 1: Write the proportion equation
256,057.74 : 353,277.45 = 142,858.62 : x - Step 2: Convert to fraction form
256,057.74/353,277.45 = 142,858.62/x - Step 3: Cross multiply
256,057.74x = 353,277.45 × 142,858.62 - Step 4: Simplify right side
256,057.74x = 50,468,728,984.12 - Step 5: Solve for x
x = 50,468,728,984.12/256,057.74 - Step 6: Final answer
x = 197,099.02
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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.