Finding the Fourth Proportional to 165,425.40, 248,138.10 and 102,439.80
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Solution
The fourth proportional to 165,425.40, 248,138.10 and 102,439.80 is: 153,659.70
Step by Step Solution
- Step 1: Write the proportion equation
165,425.40 : 248,138.10 = 102,439.80 : x - Step 2: Convert to fraction form
165,425.40/248,138.10 = 102,439.80/x - Step 3: Cross multiply
165,425.40x = 248,138.10 × 102,439.80 - Step 4: Simplify right side
165,425.40x = 25,419,217,336.38 - Step 5: Solve for x
x = 25,419,217,336.38/165,425.40 - Step 6: Final answer
x = 153,659.70
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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.