Finding the Fourth Proportional to 203,889.56, 305,934.57 and 91,649.07
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Solution
The fourth proportional to 203,889.56, 305,934.57 and 91,649.07 is: 137,518.66
Step by Step Solution
- Step 1: Write the proportion equation
203,889.56 : 305,934.57 = 91,649.07 : x - Step 2: Convert to fraction form
203,889.56/305,934.57 = 91,649.07/x - Step 3: Cross multiply
203,889.56x = 305,934.57 × 91,649.07 - Step 4: Simplify right side
203,889.56x = 28,038,618,821.35 - Step 5: Solve for x
x = 28,038,618,821.35/203,889.56 - Step 6: Final answer
x = 137,518.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.