Finding the Fourth Proportional to 209,232.68, 288,742.95 and 113,739.53
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Solution
The fourth proportional to 209,232.68, 288,742.95 and 113,739.53 is: 156,961.55
Step by Step Solution
- Step 1: Write the proportion equation
209,232.68 : 288,742.95 = 113,739.53 : x - Step 2: Convert to fraction form
209,232.68/288,742.95 = 113,739.53/x - Step 3: Cross multiply
209,232.68x = 288,742.95 × 113,739.53 - Step 4: Simplify right side
209,232.68x = 32,841,485,980.10 - Step 5: Solve for x
x = 32,841,485,980.10/209,232.68 - Step 6: Final answer
x = 156,961.55
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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.