Finding the Fourth Proportional to 290,976.36, 401,416.74 and 177,777.96
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Solution
The fourth proportional to 290,976.36, 401,416.74 and 177,777.96 is: 245,253.77
Step by Step Solution
- Step 1: Write the proportion equation
290,976.36 : 401,416.74 = 177,777.96 : x - Step 2: Convert to fraction form
290,976.36/401,416.74 = 177,777.96/x - Step 3: Cross multiply
290,976.36x = 401,416.74 × 177,777.96 - Step 4: Simplify right side
290,976.36x = 71,363,049,147.05 - Step 5: Solve for x
x = 71,363,049,147.05/290,976.36 - Step 6: Final answer
x = 245,253.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.