Finding the Fourth Proportional to 151,624.20, 209,224.65 and 87,949.68
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Solution
The fourth proportional to 151,624.20, 209,224.65 and 87,949.68 is: 121,360.84
Step by Step Solution
- Step 1: Write the proportion equation
151,624.20 : 209,224.65 = 87,949.68 : x - Step 2: Convert to fraction form
151,624.20/209,224.65 = 87,949.68/x - Step 3: Cross multiply
151,624.20x = 209,224.65 × 87,949.68 - Step 4: Simplify right side
151,624.20x = 18,401,241,015.61 - Step 5: Solve for x
x = 18,401,241,015.61/151,624.20 - Step 6: Final answer
x = 121,360.84
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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.