Finding the Fourth Proportional to 282,467.62, 389,807.13 and 155,142.10
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Solution
The fourth proportional to 282,467.62, 389,807.13 and 155,142.10 is: 214,097.09
Step by Step Solution
- Step 1: Write the proportion equation
282,467.62 : 389,807.13 = 155,142.10 : x - Step 2: Convert to fraction form
282,467.62/389,807.13 = 155,142.10/x - Step 3: Cross multiply
282,467.62x = 389,807.13 × 155,142.10 - Step 4: Simplify right side
282,467.62x = 60,475,496,743.17 - Step 5: Solve for x
x = 60,475,496,743.17/282,467.62 - Step 6: Final answer
x = 214,097.09
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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.