Finding the Fourth Proportional to 408,804.62, 613,288.94 and 142,493.63
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Solution
The fourth proportional to 408,804.62, 613,288.94 and 142,493.63 is: 213,769.02
Step by Step Solution
- Step 1: Write the proportion equation
408,804.62 : 613,288.94 = 142,493.63 : x - Step 2: Convert to fraction form
408,804.62/613,288.94 = 142,493.63/x - Step 3: Cross multiply
408,804.62x = 613,288.94 × 142,493.63 - Step 4: Simplify right side
408,804.62x = 87,389,763,520.54 - Step 5: Solve for x
x = 87,389,763,520.54/408,804.62 - Step 6: Final answer
x = 213,769.02
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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.