Finding the Fourth Proportional to 198,749.81, 274,274.74 and 113,916.08
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Solution
The fourth proportional to 198,749.81, 274,274.74 and 113,916.08 is: 157,204.19
Step by Step Solution
- Step 1: Write the proportion equation
198,749.81 : 274,274.74 = 113,916.08 : x - Step 2: Convert to fraction form
198,749.81/274,274.74 = 113,916.08/x - Step 3: Cross multiply
198,749.81x = 274,274.74 × 113,916.08 - Step 4: Simplify right side
198,749.81x = 31,244,304,051.90 - Step 5: Solve for x
x = 31,244,304,051.90/198,749.81 - Step 6: Final answer
x = 157,204.19
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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.