Finding the Fourth Proportional to 612,129.92, 918,247.84 and 168,897.92
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Solution
The fourth proportional to 612,129.92, 918,247.84 and 168,897.92 is: 253,361.49
Step by Step Solution
- Step 1: Write the proportion equation
612,129.92 : 918,247.84 = 168,897.92 : x - Step 2: Convert to fraction form
612,129.92/918,247.84 = 168,897.92/x - Step 3: Cross multiply
612,129.92x = 918,247.84 × 168,897.92 - Step 4: Simplify right side
612,129.92x = 155,090,150,220.49 - Step 5: Solve for x
x = 155,090,150,220.49/612,129.92 - Step 6: Final answer
x = 253,361.49
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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.