Finding the Fourth Proportional to 165,415.20, 248,122.80 and 95,431.20
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Solution
The fourth proportional to 165,415.20, 248,122.80 and 95,431.20 is: 143,146.80
Step by Step Solution
- Step 1: Write the proportion equation
165,415.20 : 248,122.80 = 95,431.20 : x - Step 2: Convert to fraction form
165,415.20/248,122.80 = 95,431.20/x - Step 3: Cross multiply
165,415.20x = 248,122.80 × 95,431.20 - Step 4: Simplify right side
165,415.20x = 23,678,656,551.36 - Step 5: Solve for x
x = 23,678,656,551.36/165,415.20 - Step 6: Final answer
x = 143,146.80
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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.