Finding the Fourth Proportional to 231,320.36, 346,982.94 and 81,532.74
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Solution
The fourth proportional to 231,320.36, 346,982.94 and 81,532.74 is: 122,299.96
Step by Step Solution
- Step 1: Write the proportion equation
231,320.36 : 346,982.94 = 81,532.74 : x - Step 2: Convert to fraction form
231,320.36/346,982.94 = 81,532.74/x - Step 3: Cross multiply
231,320.36x = 346,982.94 × 81,532.74 - Step 4: Simplify right side
231,320.36x = 28,290,469,831.46 - Step 5: Solve for x
x = 28,290,469,831.46/231,320.36 - Step 6: Final answer
x = 122,299.96
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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.