Finding the Fourth Proportional to 149,290.56, 205,803.18 and 113,418.09
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Solution
The fourth proportional to 149,290.56, 205,803.18 and 113,418.09 is: 156,351.50
Step by Step Solution
- Step 1: Write the proportion equation
149,290.56 : 205,803.18 = 113,418.09 : x - Step 2: Convert to fraction form
149,290.56/205,803.18 = 113,418.09/x - Step 3: Cross multiply
149,290.56x = 205,803.18 × 113,418.09 - Step 4: Simplify right side
149,290.56x = 23,341,803,591.53 - Step 5: Solve for x
x = 23,341,803,591.53/149,290.56 - Step 6: Final answer
x = 156,351.50
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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.