Finding the Fourth Proportional to 285,057.26, 393,373.47 and 157,732.94
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Solution
The fourth proportional to 285,057.26, 393,373.47 and 157,732.94 is: 217,668.39
Step by Step Solution
- Step 1: Write the proportion equation
285,057.26 : 393,373.47 = 157,732.94 : x - Step 2: Convert to fraction form
285,057.26/393,373.47 = 157,732.94/x - Step 3: Cross multiply
285,057.26x = 393,373.47 × 157,732.94 - Step 4: Simplify right side
285,057.26x = 62,047,953,941.10 - Step 5: Solve for x
x = 62,047,953,941.10/285,057.26 - Step 6: Final answer
x = 217,668.39
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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.