Finding the Fourth Proportional to 165,771.40, 248,657.10 and 102,785.80
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Solution
The fourth proportional to 165,771.40, 248,657.10 and 102,785.80 is: 154,178.70
Step by Step Solution
- Step 1: Write the proportion equation
165,771.40 : 248,657.10 = 102,785.80 : x - Step 2: Convert to fraction form
165,771.40/248,657.10 = 102,785.80/x - Step 3: Cross multiply
165,771.40x = 248,657.10 × 102,785.80 - Step 4: Simplify right side
165,771.40x = 25,558,418,949.18 - Step 5: Solve for x
x = 25,558,418,949.18/165,771.40 - Step 6: Final answer
x = 154,178.70
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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.