Finding the Fourth Proportional to 201,649.75, 278,276.66 and 112,246.87
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Solution
The fourth proportional to 201,649.75, 278,276.66 and 112,246.87 is: 154,900.68
Step by Step Solution
- Step 1: Write the proportion equation
201,649.75 : 278,276.66 = 112,246.87 : x - Step 2: Convert to fraction form
201,649.75/278,276.66 = 112,246.87/x - Step 3: Cross multiply
201,649.75x = 278,276.66 × 112,246.87 - Step 4: Simplify right side
201,649.75x = 31,235,684,079.05 - Step 5: Solve for x
x = 31,235,684,079.05/201,649.75 - Step 6: Final answer
x = 154,900.68
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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.