Finding the Fourth Proportional to 228,891.20, 342,645.60 and 201,243.20
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Solution
The fourth proportional to 228,891.20, 342,645.60 and 201,243.20 is: 301,257.09
Step by Step Solution
- Step 1: Write the proportion equation
228,891.20 : 342,645.60 = 201,243.20 : x - Step 2: Convert to fraction form
228,891.20/342,645.60 = 201,243.20/x - Step 3: Cross multiply
228,891.20x = 342,645.60 × 201,243.20 - Step 4: Simplify right side
228,891.20x = 68,955,097,009.92 - Step 5: Solve for x
x = 68,955,097,009.92/228,891.20 - Step 6: Final answer
x = 301,257.09
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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.