Finding the Fourth Proportional to 205,194.76, 283,173.54 and 128,717.08
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Solution
The fourth proportional to 205,194.76, 283,173.54 and 128,717.08 is: 177,632.56
Step by Step Solution
- Step 1: Write the proportion equation
205,194.76 : 283,173.54 = 128,717.08 : x - Step 2: Convert to fraction form
205,194.76/283,173.54 = 128,717.08/x - Step 3: Cross multiply
205,194.76x = 283,173.54 × 128,717.08 - Step 4: Simplify right side
205,194.76x = 36,449,271,202.06 - Step 5: Solve for x
x = 36,449,271,202.06/205,194.76 - Step 6: Final answer
x = 177,632.56
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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.