Finding the Fourth Proportional to 165,415.20, 248,122.80 and 162,790.80
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Solution
The fourth proportional to 165,415.20, 248,122.80 and 162,790.80 is: 244,186.20
Step by Step Solution
- Step 1: Write the proportion equation
165,415.20 : 248,122.80 = 162,790.80 : x - Step 2: Convert to fraction form
165,415.20/248,122.80 = 162,790.80/x - Step 3: Cross multiply
165,415.20x = 248,122.80 × 162,790.80 - Step 4: Simplify right side
165,415.20x = 40,392,109,110.24 - Step 5: Solve for x
x = 40,392,109,110.24/165,415.20 - Step 6: Final answer
x = 244,186.20
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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.