Finding the Fourth Proportional to 284,588.92, 392,717.26 and 157,256.31
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Solution
The fourth proportional to 284,588.92, 392,717.26 and 157,256.31 is: 217,005.17
Step by Step Solution
- Step 1: Write the proportion equation
284,588.92 : 392,717.26 = 157,256.31 : x - Step 2: Convert to fraction form
284,588.92/392,717.26 = 157,256.31/x - Step 3: Cross multiply
284,588.92x = 392,717.26 × 157,256.31 - Step 4: Simplify right side
284,588.92x = 61,757,267,180.91 - Step 5: Solve for x
x = 61,757,267,180.91/284,588.92 - Step 6: Final answer
x = 217,005.17
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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.