Finding the Fourth Proportional to 204,400.80, 306,601.20 and 141,415.20
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Solution
The fourth proportional to 204,400.80, 306,601.20 and 141,415.20 is: 212,122.80
Step by Step Solution
- Step 1: Write the proportion equation
204,400.80 : 306,601.20 = 141,415.20 : x - Step 2: Convert to fraction form
204,400.80/306,601.20 = 141,415.20/x - Step 3: Cross multiply
204,400.80x = 306,601.20 × 141,415.20 - Step 4: Simplify right side
204,400.80x = 43,358,070,018.24 - Step 5: Solve for x
x = 43,358,070,018.24/204,400.80 - Step 6: Final answer
x = 212,122.80
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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.