Finding the Fourth Proportional to 759,178.68, 1,138,745.76 and 198,213.12
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Solution
The fourth proportional to 759,178.68, 1,138,745.76 and 198,213.12 is: 297,313.87
Step by Step Solution
- Step 1: Write the proportion equation
759,178.68 : 1,138,745.76 = 198,213.12 : x - Step 2: Convert to fraction form
759,178.68/1,138,745.76 = 198,213.12/x - Step 3: Cross multiply
759,178.68x = 1,138,745.76 × 198,213.12 - Step 4: Simplify right side
759,178.68x = 225,714,349,976.37 - Step 5: Solve for x
x = 225,714,349,976.37/759,178.68 - Step 6: Final answer
x = 297,313.87
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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.