Finding the Fourth Proportional to 406,631.68, 561,135.52 and 225,351.36
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Solution
The fourth proportional to 406,631.68, 561,135.52 and 225,351.36 is: 310,975.90
Step by Step Solution
- Step 1: Write the proportion equation
406,631.68 : 561,135.52 = 225,351.36 : x - Step 2: Convert to fraction form
406,631.68/561,135.52 = 225,351.36/x - Step 3: Cross multiply
406,631.68x = 561,135.52 × 225,351.36 - Step 4: Simplify right side
406,631.68x = 126,452,652,576.31 - Step 5: Solve for x
x = 126,452,652,576.31/406,631.68 - Step 6: Final answer
x = 310,975.90
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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.