Finding the Fourth Proportional to 236,646.99, 326,571.21 and 129,216.96
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Solution
The fourth proportional to 236,646.99, 326,571.21 and 129,216.96 is: 178,318.51
Step by Step Solution
- Step 1: Write the proportion equation
236,646.99 : 326,571.21 = 129,216.96 : x - Step 2: Convert to fraction form
236,646.99/326,571.21 = 129,216.96/x - Step 3: Cross multiply
236,646.99x = 326,571.21 × 129,216.96 - Step 4: Simplify right side
236,646.99x = 42,198,538,979.72 - Step 5: Solve for x
x = 42,198,538,979.72/236,646.99 - Step 6: Final answer
x = 178,318.51
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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.