Finding the Fourth Proportional to 200,073.62, 275,831.44 and 128,329.08
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Solution
The fourth proportional to 200,073.62, 275,831.44 and 128,329.08 is: 176,920.85
Step by Step Solution
- Step 1: Write the proportion equation
200,073.62 : 275,831.44 = 128,329.08 : x - Step 2: Convert to fraction form
200,073.62/275,831.44 = 128,329.08/x - Step 3: Cross multiply
200,073.62x = 275,831.44 × 128,329.08 - Step 4: Simplify right side
200,073.62x = 35,397,194,930.28 - Step 5: Solve for x
x = 35,397,194,930.28/200,073.62 - Step 6: Final answer
x = 176,920.85
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1.5x scale
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.