Finding the Fourth Proportional to 215,831.05, 297,768.74 and 125,137.07
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Solution
The fourth proportional to 215,831.05, 297,768.74 and 125,137.07 is: 172,643.87
Step by Step Solution
- Step 1: Write the proportion equation
215,831.05 : 297,768.74 = 125,137.07 : x - Step 2: Convert to fraction form
215,831.05/297,768.74 = 125,137.07/x - Step 3: Cross multiply
215,831.05x = 297,768.74 × 125,137.07 - Step 4: Simplify right side
215,831.05x = 37,261,907,661.19 - Step 5: Solve for x
x = 37,261,907,661.19/215,831.05 - Step 6: Final answer
x = 172,643.87
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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.