Finding the Fourth Proportional to 207,672.80, 286,576.80 and 122,817.20
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Solution
The fourth proportional to 207,672.80, 286,576.80 and 122,817.20 is: 169,480.84
Step by Step Solution
- Step 1: Write the proportion equation
207,672.80 : 286,576.80 = 122,817.20 : x - Step 2: Convert to fraction form
207,672.80/286,576.80 = 122,817.20/x - Step 3: Cross multiply
207,672.80x = 286,576.80 × 122,817.20 - Step 4: Simplify right side
207,672.80x = 35,196,560,160.96 - Step 5: Solve for x
x = 35,196,560,160.96/207,672.80 - Step 6: Final answer
x = 169,480.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.