Finding the Fourth Proportional to 165,198.05, 248,907.60 and 149,420.66
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Solution
The fourth proportional to 165,198.05, 248,907.60 and 149,420.66 is: 225,135.45
Step by Step Solution
- Step 1: Write the proportion equation
165,198.05 : 248,907.60 = 149,420.66 : x - Step 2: Convert to fraction form
165,198.05/248,907.60 = 149,420.66/x - Step 3: Cross multiply
165,198.05x = 248,907.60 × 149,420.66 - Step 4: Simplify right side
165,198.05x = 37,191,937,871.02 - Step 5: Solve for x
x = 37,191,937,871.02/165,198.05 - Step 6: Final answer
x = 225,135.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.