Finding the Fourth Proportional to 199,892.02, 275,824.33 and 128,368.92
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Solution
The fourth proportional to 199,892.02, 275,824.33 and 128,368.92 is: 177,131.99
Step by Step Solution
- Step 1: Write the proportion equation
199,892.02 : 275,824.33 = 128,368.92 : x - Step 2: Convert to fraction form
199,892.02/275,824.33 = 128,368.92/x - Step 3: Cross multiply
199,892.02x = 275,824.33 × 128,368.92 - Step 4: Simplify right side
199,892.02x = 35,407,271,351.82 - Step 5: Solve for x
x = 35,407,271,351.82/199,892.02 - Step 6: Final answer
x = 177,131.99
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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.