Finding the Fourth Proportional to 276,161.21, 414,246.96 and 86,617.38
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Solution
The fourth proportional to 276,161.21, 414,246.96 and 86,617.38 is: 129,927.69
Step by Step Solution
- Step 1: Write the proportion equation
276,161.21 : 414,246.96 = 86,617.38 : x - Step 2: Convert to fraction form
276,161.21/414,246.96 = 86,617.38/x - Step 3: Cross multiply
276,161.21x = 414,246.96 × 86,617.38 - Step 4: Simplify right side
276,161.21x = 35,880,986,348.16 - Step 5: Solve for x
x = 35,880,986,348.16/276,161.21 - Step 6: Final answer
x = 129,927.69
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1.5x scale
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.