Finding the Fourth Proportional to 292,203.78, 403,247.51 and 161,381.09
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Solution
The fourth proportional to 292,203.78, 403,247.51 and 161,381.09 is: 222,709.37
Step by Step Solution
- Step 1: Write the proportion equation
292,203.78 : 403,247.51 = 161,381.09 : x - Step 2: Convert to fraction form
292,203.78/403,247.51 = 161,381.09/x - Step 3: Cross multiply
292,203.78x = 403,247.51 × 161,381.09 - Step 4: Simplify right side
292,203.78x = 65,076,519,880.44 - Step 5: Solve for x
x = 65,076,519,880.44/292,203.78 - Step 6: Final answer
x = 222,709.37
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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.