Finding the Fourth Proportional to 253,714.68, 380,629.68 and 85,222.08
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Solution
The fourth proportional to 253,714.68, 380,629.68 and 85,222.08 is: 127,852.49
Step by Step Solution
- Step 1: Write the proportion equation
253,714.68 : 380,629.68 = 85,222.08 : x - Step 2: Convert to fraction form
253,714.68/380,629.68 = 85,222.08/x - Step 3: Cross multiply
253,714.68x = 380,629.68 × 85,222.08 - Step 4: Simplify right side
253,714.68x = 32,438,053,039.33 - Step 5: Solve for x
x = 32,438,053,039.33/253,714.68 - Step 6: Final answer
x = 127,852.49
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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.