Finding the Fourth Proportional to 199,827.41, 275,945.99 and 128,331.99
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Solution
The fourth proportional to 199,827.41, 275,945.99 and 128,331.99 is: 177,216.42
Step by Step Solution
- Step 1: Write the proportion equation
199,827.41 : 275,945.99 = 128,331.99 : x - Step 2: Convert to fraction form
199,827.41/275,945.99 = 128,331.99/x - Step 3: Cross multiply
199,827.41x = 275,945.99 × 128,331.99 - Step 4: Simplify right side
199,827.41x = 35,412,697,387.56 - Step 5: Solve for x
x = 35,412,697,387.56/199,827.41 - Step 6: Final answer
x = 177,216.42
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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.