Finding the Fourth Proportional to 284,890.38, 393,124.23 and 157,534.08
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Solution
The fourth proportional to 284,890.38, 393,124.23 and 157,534.08 is: 217,383.49
Step by Step Solution
- Step 1: Write the proportion equation
284,890.38 : 393,124.23 = 157,534.08 : x - Step 2: Convert to fraction form
284,890.38/393,124.23 = 157,534.08/x - Step 3: Cross multiply
284,890.38x = 393,124.23 × 157,534.08 - Step 4: Simplify right side
284,890.38x = 61,930,463,898.76 - Step 5: Solve for x
x = 61,930,463,898.76/284,890.38 - Step 6: Final answer
x = 217,383.49
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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.