Finding the Fourth Proportional to 408,916.02, 613,636.47 and 198,439.14
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Solution
The fourth proportional to 408,916.02, 613,636.47 and 198,439.14 is: 297,786.07
Step by Step Solution
- Step 1: Write the proportion equation
408,916.02 : 613,636.47 = 198,439.14 : x - Step 2: Convert to fraction form
408,916.02/613,636.47 = 198,439.14/x - Step 3: Cross multiply
408,916.02x = 613,636.47 × 198,439.14 - Step 4: Simplify right side
408,916.02x = 121,769,493,379.44 - Step 5: Solve for x
x = 121,769,493,379.44/408,916.02 - Step 6: Final answer
x = 297,786.07
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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.