Finding the Fourth Proportional to 408,663.69, 613,049.09 and 135,018.99
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Solution
The fourth proportional to 408,663.69, 613,049.09 and 135,018.99 is: 202,546.18
Step by Step Solution
- Step 1: Write the proportion equation
408,663.69 : 613,049.09 = 135,018.99 : x - Step 2: Convert to fraction form
408,663.69/613,049.09 = 135,018.99/x - Step 3: Cross multiply
408,663.69x = 613,049.09 × 135,018.99 - Step 4: Simplify right side
408,663.69x = 82,773,268,277.12 - Step 5: Solve for x
x = 82,773,268,277.12/408,663.69 - Step 6: Final answer
x = 202,546.18
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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.