Finding the Fourth Proportional to 284,701.44, 392,857.92 and 157,356.48
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Solution
The fourth proportional to 284,701.44, 392,857.92 and 157,356.48 is: 217,135.32
Step by Step Solution
- Step 1: Write the proportion equation
284,701.44 : 392,857.92 = 157,356.48 : x - Step 2: Convert to fraction form
284,701.44/392,857.92 = 157,356.48/x - Step 3: Cross multiply
284,701.44x = 392,857.92 × 157,356.48 - Step 4: Simplify right side
284,701.44x = 61,818,739,431.32 - Step 5: Solve for x
x = 61,818,739,431.32/284,701.44 - Step 6: Final answer
x = 217,135.32
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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.