Finding the Fourth Proportional to 300,991.21, 415,384.84 and 178,556.08
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Solution
The fourth proportional to 300,991.21, 415,384.84 and 178,556.08 is: 246,417.45
Step by Step Solution
- Step 1: Write the proportion equation
300,991.21 : 415,384.84 = 178,556.08 : x - Step 2: Convert to fraction form
300,991.21/415,384.84 = 178,556.08/x - Step 3: Cross multiply
300,991.21x = 415,384.84 × 178,556.08 - Step 4: Simplify right side
300,991.21x = 74,169,487,236.97 - Step 5: Solve for x
x = 74,169,487,236.97/300,991.21 - Step 6: Final answer
x = 246,417.45
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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.