Finding the Fourth Proportional to 205,276.54, 283,183.33 and 128,757.32
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Solution
The fourth proportional to 205,276.54, 283,183.33 and 128,757.32 is: 177,623.45
Step by Step Solution
- Step 1: Write the proportion equation
205,276.54 : 283,183.33 = 128,757.32 : x - Step 2: Convert to fraction form
205,276.54/283,183.33 = 128,757.32/x - Step 3: Cross multiply
205,276.54x = 283,183.33 × 128,757.32 - Step 4: Simplify right side
205,276.54x = 36,461,926,639.48 - Step 5: Solve for x
x = 36,461,926,639.48/205,276.54 - Step 6: Final answer
x = 177,623.45
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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.