Finding the Fourth Proportional to 275,738.59, 380,528.49 and 153,236.13
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Solution
The fourth proportional to 275,738.59, 380,528.49 and 153,236.13 is: 211,470.99
Step by Step Solution
- Step 1: Write the proportion equation
275,738.59 : 380,528.49 = 153,236.13 : x - Step 2: Convert to fraction form
275,738.59/380,528.49 = 153,236.13/x - Step 3: Cross multiply
275,738.59x = 380,528.49 × 153,236.13 - Step 4: Simplify right side
275,738.59x = 58,310,713,746.53 - Step 5: Solve for x
x = 58,310,713,746.53/275,738.59 - Step 6: Final answer
x = 211,470.99
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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.