Finding the Fourth Proportional to 186,535.44, 257,306.76 and 113,905.17
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Solution
The fourth proportional to 186,535.44, 257,306.76 and 113,905.17 is: 157,120.65
Step by Step Solution
- Step 1: Write the proportion equation
186,535.44 : 257,306.76 = 113,905.17 : x - Step 2: Convert to fraction form
186,535.44/257,306.76 = 113,905.17/x - Step 3: Cross multiply
186,535.44x = 257,306.76 × 113,905.17 - Step 4: Simplify right side
186,535.44x = 29,308,570,239.95 - Step 5: Solve for x
x = 29,308,570,239.95/186,535.44 - Step 6: Final answer
x = 157,120.65
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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.