Finding the Fourth Proportional to 415,831.75, 623,824.61 and 131,593.84
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Solution
The fourth proportional to 415,831.75, 623,824.61 and 131,593.84 is: 197,415.12
Step by Step Solution
- Step 1: Write the proportion equation
415,831.75 : 623,824.61 = 131,593.84 : x - Step 2: Convert to fraction form
415,831.75/623,824.61 = 131,593.84/x - Step 3: Cross multiply
415,831.75x = 623,824.61 × 131,593.84 - Step 4: Simplify right side
415,831.75x = 82,091,473,698.87 - Step 5: Solve for x
x = 82,091,473,698.87/415,831.75 - Step 6: Final answer
x = 197,415.12
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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.