Finding the Fourth Proportional to 289,748.80, 434,104.80 and 248,276.80
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Solution
The fourth proportional to 289,748.80, 434,104.80 and 248,276.80 is: 371,971.00
Step by Step Solution
- Step 1: Write the proportion equation
289,748.80 : 434,104.80 = 248,276.80 : x - Step 2: Convert to fraction form
289,748.80/434,104.80 = 248,276.80/x - Step 3: Cross multiply
289,748.80x = 434,104.80 × 248,276.80 - Step 4: Simplify right side
289,748.80x = 107,778,150,608.64 - Step 5: Solve for x
x = 107,778,150,608.64/289,748.80 - Step 6: Final answer
x = 371,971.00
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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.