Finding the Fourth Proportional to 405,519.28, 608,365.86 and 121,232.08
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Solution
The fourth proportional to 405,519.28, 608,365.86 and 121,232.08 is: 181,874.11
Step by Step Solution
- Step 1: Write the proportion equation
405,519.28 : 608,365.86 = 121,232.08 : x - Step 2: Convert to fraction form
405,519.28/608,365.86 = 121,232.08/x - Step 3: Cross multiply
405,519.28x = 608,365.86 × 121,232.08 - Step 4: Simplify right side
405,519.28x = 73,753,458,608.79 - Step 5: Solve for x
x = 73,753,458,608.79/405,519.28 - Step 6: Final answer
x = 181,874.11
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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.