Finding the Fourth Proportional to 284,971.48, 393,272.22 and 157,644.88
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Solution
The fourth proportional to 284,971.48, 393,272.22 and 157,644.88 is: 217,556.34
Step by Step Solution
- Step 1: Write the proportion equation
284,971.48 : 393,272.22 = 157,644.88 : x - Step 2: Convert to fraction form
284,971.48/393,272.22 = 157,644.88/x - Step 3: Cross multiply
284,971.48x = 393,272.22 × 157,644.88 - Step 4: Simplify right side
284,971.48x = 61,997,351,929.23 - Step 5: Solve for x
x = 61,997,351,929.23/284,971.48 - Step 6: Final answer
x = 217,556.34
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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.