Finding the Fourth Proportional to 208,591.20, 312,230.70 and 202,030.20
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Solution
The fourth proportional to 208,591.20, 312,230.70 and 202,030.20 is: 302,409.84
Step by Step Solution
- Step 1: Write the proportion equation
208,591.20 : 312,230.70 = 202,030.20 : x - Step 2: Convert to fraction form
208,591.20/312,230.70 = 202,030.20/x - Step 3: Cross multiply
208,591.20x = 312,230.70 × 202,030.20 - Step 4: Simplify right side
208,591.20x = 63,080,030,767.14 - Step 5: Solve for x
x = 63,080,030,767.14/208,591.20 - Step 6: Final answer
x = 302,409.84
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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.