Finding the Fourth Proportional to 198,740.36, 274,261.50 and 113,857.76
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Solution
The fourth proportional to 198,740.36, 274,261.50 and 113,857.76 is: 157,123.60
Step by Step Solution
- Step 1: Write the proportion equation
198,740.36 : 274,261.50 = 113,857.76 : x - Step 2: Convert to fraction form
198,740.36/274,261.50 = 113,857.76/x - Step 3: Cross multiply
198,740.36x = 274,261.50 × 113,857.76 - Step 4: Simplify right side
198,740.36x = 31,226,800,044.24 - Step 5: Solve for x
x = 31,226,800,044.24/198,740.36 - Step 6: Final answer
x = 157,123.60
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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.