Finding the Fourth Proportional to 403,480.80, 605,512.80 and 225,799.20
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Solution
The fourth proportional to 403,480.80, 605,512.80 and 225,799.20 is: 338,861.99
Step by Step Solution
- Step 1: Write the proportion equation
403,480.80 : 605,512.80 = 225,799.20 : x - Step 2: Convert to fraction form
403,480.80/605,512.80 = 225,799.20/x - Step 3: Cross multiply
403,480.80x = 605,512.80 × 225,799.20 - Step 4: Simplify right side
403,480.80x = 136,724,305,829.76 - Step 5: Solve for x
x = 136,724,305,829.76/403,480.80 - Step 6: Final answer
x = 338,861.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.