Finding the Fourth Proportional to 284,878.80, 393,116.80 and 155,791.80
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Solution
The fourth proportional to 284,878.80, 393,116.80 and 155,791.80 is: 214,983.96
Step by Step Solution
- Step 1: Write the proportion equation
284,878.80 : 393,116.80 = 155,791.80 : x - Step 2: Convert to fraction form
284,878.80/393,116.80 = 155,791.80/x - Step 3: Cross multiply
284,878.80x = 393,116.80 × 155,791.80 - Step 4: Simplify right side
284,878.80x = 61,244,373,882.24 - Step 5: Solve for x
x = 61,244,373,882.24/284,878.80 - Step 6: Final answer
x = 214,983.96
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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.